Merge branch 'master' into master

.github/FUNDING.yml

@@ -1,2 +1,3 @@
 patreon: assimp
 custom: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=4JRJVPXC4QJM4
+open_collective: assimp

.github/workflows/ccpp.yml

@@ -7,40 +7,53 @@ on:
     branches: [ master ]
 
 jobs:
-  linux:
+  job:
-    runs-on: ubuntu-latest
+    name: ${{ matrix.os }}-${{ matrix.cxx }}-build-and-test
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        name: [ubuntu-gcc, macos-clang, windows-msvc, ubuntu-clang]
+        # For Windows msvc, for Linux and macOS let's use the clang compiler, use gcc for Linux.
+        include:
+          - name: windows-msvc
+            os: windows-latest
+            cxx: cl.exe
+            cc: cl.exe
+          - name: ubuntu-clang
+            os: ubuntu-latest
+            cxx: clang++
+            cc: clang
+          - name: macos-clang
+            os: macos-latest
+            cxx: clang++
+            cc: clang
+          - name: ubuntu-gcc
+            os: ubuntu-latest
+            cxx: g++
+            cc: gcc
 
     steps:
     - uses: actions/checkout@v2
-    - name: configure
+    
-      run: cmake CMakeLists.txt
+    - uses: lukka/get-cmake@latest
-    - name: build
+    
-      run: cmake --build .
+    - uses: ilammy/msvc-dev-cmd@v1
+    
+    - uses: lukka/set-shell-env@v1
+      with:
+        CXX: ${{ matrix.cxx }}
+        CC: ${{ matrix.cc }}
+    
+    - name: configure and build
+      uses: lukka/run-cmake@v2
+      with:
+        cmakeListsOrSettingsJson: CMakeListsTxtAdvanced
+        cmakeListsTxtPath: '${{ github.workspace }}/CMakeLists.txt'
+        cmakeAppendedArgs: '-GNinja -DCMAKE_BUILD_TYPE=Release'
+        buildWithCMakeArgs: '-- -v'
+        buildDirectory: '${{ github.workspace }}/build/'
+        
     - name: test
-      run: cd bin && ./unit
+      run: cd build/bin && ./unit
-  
+      shell: bash
-  mac:
-    runs-on: macos-latest
-    
-    steps:
-    - uses: actions/checkout@v2
-    - name: configure
-      run: cmake CMakeLists.txt
-    - name: build
-      run: cmake --build .
-    - name: test
-      run: cd bin && ./unit
-
-  windows:
-    runs-on: windows-latest
-    
-    steps:
-    - uses: actions/checkout@v2
-    - name: configure
-      run: cmake CMakeLists.txt
-    - name: build
-      run: cmake --build . --config Release
-    - name: test
-      run: | 
-        cd bin\Release
-        .\unit

.github/workflows/sanitizer.yml

@@ -0,0 +1,56 @@
+name: C/C++ Sanitizer
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  job1:
+    name: adress-sanitizer
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: lukka/get-cmake@latest    
+    - uses: lukka/set-shell-env@v1
+      with:
+        CXX: clang++
+        CC: clang
+    
+    - name: configure and build
+      uses: lukka/run-cmake@v2
+      with:
+        cmakeListsOrSettingsJson: CMakeListsTxtAdvanced
+        cmakeListsTxtPath: '${{ github.workspace }}/CMakeLists.txt'
+        cmakeAppendedArgs: '-GNinja -DCMAKE_BUILD_TYPE=Debug -DASSIMP_ASAN=ON'
+        buildWithCMakeArgs: '-- -v'
+        buildDirectory: '${{ github.workspace }}/build/'
+    
+    - name: test
+      run: cd build/bin && ./unit
+      shell: bash
+
+  job2:
+    name: undefined-behavior-sanitizer
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: lukka/get-cmake@latest    
+    - uses: lukka/set-shell-env@v1
+      with:
+        CXX: clang++
+        CC: clang
+    
+    - name: configure and build
+      uses: lukka/run-cmake@v2
+      with:
+        cmakeListsOrSettingsJson: CMakeListsTxtAdvanced
+        cmakeListsTxtPath: '${{ github.workspace }}/CMakeLists.txt'
+        cmakeAppendedArgs: '-GNinja -DCMAKE_BUILD_TYPE=Debug -DASSIMP_UBSAN=ON'
+        buildWithCMakeArgs: '-- -v'
+        buildDirectory: '${{ github.workspace }}/build/'
+    
+    - name: test
+      run: cd build/bin && ./unit
+      shell: bash

CMakeLists.txt

@@ -239,22 +239,14 @@ IF( UNIX )
   INCLUDE(GNUInstallDirs)
 ENDIF()
 
-# enable warnings as errors ########################################
-IF (MSVC)
-  ADD_COMPILE_OPTIONS(/WX)
-ELSE()
-  SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror")
-  SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
-ENDIF()
-
 # Grouped compiler settings ########################################
 IF ((CMAKE_C_COMPILER_ID MATCHES "GNU") AND NOT CMAKE_COMPILER_IS_MINGW)
   IF(NOT ASSIMP_HUNTER_ENABLED)
-    SET(CMAKE_CXX_FLAGS "-fPIC -std=c++0x ${CMAKE_CXX_FLAGS}")
+    SET(CMAKE_CXX_STANDARD 11)
-    SET(CMAKE_C_FLAGS "-fPIC ${CMAKE_C_FLAGS}")
+    SET(CMAKE_POSITION_INDEPENDENT_CODE ON)
   ENDIF()
   # hide all not-exported symbols
-  SET(CMAKE_CXX_FLAGS "-g -fvisibility=hidden -fno-strict-aliasing -Wall ${CMAKE_CXX_FLAGS}")
+  SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wall ${CMAKE_CXX_FLAGS}")
   SET(CMAKE_C_FLAGS "-fno-strict-aliasing ${CMAKE_C_FLAGS}")
   SET(LIBSTDC++_LIBRARIES -lstdc++)
 ELSEIF(MSVC)
@@ -267,10 +259,10 @@ ELSEIF(MSVC)
   SET(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /D_DEBUG /Zi /Od")
 ELSEIF ( "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" )
   IF(NOT ASSIMP_HUNTER_ENABLED)
-    SET(CMAKE_CXX_FLAGS "-fPIC -std=c++11 ${CMAKE_CXX_FLAGS}")
+    SET(CMAKE_CXX_STANDARD 11)
-    SET(CMAKE_C_FLAGS "-fPIC ${CMAKE_C_FLAGS}")
+    SET(CMAKE_POSITION_INDEPENDENT_CODE ON)
   ENDIF()
-  SET(CMAKE_CXX_FLAGS "-g -fvisibility=hidden -fno-strict-aliasing -Wall -Wno-long-long ${CMAKE_CXX_FLAGS}" )
+  SET(CMAKE_CXX_FLAGS "-fvisibility=hidden -fno-strict-aliasing -Wall -Wno-long-long ${CMAKE_CXX_FLAGS}" )
   SET(CMAKE_C_FLAGS "-fno-strict-aliasing ${CMAKE_C_FLAGS}")
 ELSEIF( CMAKE_COMPILER_IS_MINGW )
   IF (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 7.0)

Readme.md

@@ -2,6 +2,7 @@ Open Asset Import Library (assimp)
 ==================================
 A library to import and export various 3d-model-formats including scene-post-processing to generate missing render data.
 ### Current project status ###
+[![Financial Contributors on Open Collective](https://opencollective.com/assimp/all/badge.svg?label=financial+contributors)](https://opencollective.com/assimp) 
 ![C/C++ CI](https://github.com/assimp/assimp/workflows/C/C++%20CI/badge.svg)
 [![Linux Build Status](https://travis-ci.org/assimp/assimp.svg)](https://travis-ci.org/assimp/assimp)
 [![Windows Build Status](https://ci.appveyor.com/api/projects/status/tmo433wax6u6cjp4?svg=true)](https://ci.appveyor.com/project/kimkulling/assimp)
@@ -179,6 +180,28 @@ And we also have a Gitter-channel:Gitter [![Join the chat at https://gitter.im/a
 Contributions to assimp are highly appreciated. The easiest way to get involved is to submit
 a pull request with your changes against the main repository's `master` branch.
 
+## Contributors
+
+### Code Contributors
+
+This project exists thanks to all the people who contribute. [[Contribute](CONTRIBUTING.md)].
+
+<a href="https://github.com/assimp/assimp/graphs/contributors"><img src="https://opencollective.com/assimp/contributors.svg?width=890&button=false" /></a>
+
+### Financial Contributors
+
+Become a financial contributor and help us sustain our community. [[Contribute](https://opencollective.com/assimp/contribute)]
+
+#### Individuals
+
+<a href="https://opencollective.com/assimp"><img src="https://opencollective.com/assimp/individuals.svg?width=890"></a>
+
+#### Organizations
+
+Support this project with your organization. Your logo will show up here with a link to your website. [[Contribute](https://opencollective.com/assimp/contribute)]
+
+<a href="https://opencollective.com/assimp/organization/0/website"><img src="https://opencollective.com/assimp/organization/0/avatar.svg"></a>
+
 ### License ###
 Our license is based on the modified, __3-clause BSD__-License.
 

code/ASE/ASEParser.cpp

@@ -142,11 +142,11 @@ void Parser::LogWarning(const char* szWarn)
 {
     ai_assert(NULL != szWarn);
 
-    char szTemp[1024];
+    char szTemp[2048];
 #if _MSC_VER >= 1400
     sprintf_s(szTemp, "Line %u: %s",iLineNumber,szWarn);
 #else
-    ai_snprintf(szTemp,1024,"Line %u: %s",iLineNumber,szWarn);
+    ai_snprintf(szTemp,sizeof(szTemp),"Line %u: %s",iLineNumber,szWarn);
 #endif
 
     // output the warning to the logger ...

code/Blender/BlenderBMesh.cpp

@@ -42,7 +42,6 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *  @brief Conversion of Blender's new BMesh stuff
  */
 
-
 #ifndef ASSIMP_BUILD_NO_BLEND_IMPORTER
 
 #include "BlenderDNA.h"
@@ -181,6 +180,7 @@ void BlenderBMeshConverter::AddFace( int v1, int v2, int v3, int v4 )
     face.v2 = v2;
     face.v3 = v3;
     face.v4 = v4;
+    face.flag = 0;
     // TODO - Work out how materials work
     face.mat_nr = 0;
     triMesh->mface.push_back( face );

code/CApi/AssimpCExport.cpp

@@ -73,11 +73,11 @@ ASSIMP_API const aiExportFormatDesc* aiGetExportFormatDescription( size_t index)
 
     aiExportFormatDesc *desc = new aiExportFormatDesc;
     desc->description = new char[ strlen( orig->description ) + 1 ]();
-    ::strncpy( (char*) desc->description, orig->description, strlen( orig->description ) );
+    ::memcpy( (char*) desc->description, orig->description, strlen( orig->description ) );
     desc->fileExtension = new char[ strlen( orig->fileExtension ) + 1 ]();
-    ::strncpy( ( char* ) desc->fileExtension, orig->fileExtension, strlen( orig->fileExtension ) );
+    ::memcpy( ( char* ) desc->fileExtension, orig->fileExtension, strlen( orig->fileExtension ) );
     desc->id = new char[ strlen( orig->id ) + 1 ]();
-    ::strncpy( ( char* ) desc->id, orig->id, strlen( orig->id ) );
+    ::memcpy( ( char* ) desc->id, orig->id, strlen( orig->id ) );
 
     return desc;
 }

code/CMakeLists.txt

@@ -1134,6 +1134,13 @@ ENDIF ()
 ADD_LIBRARY( assimp ${assimp_src} )
 ADD_LIBRARY(assimp::assimp ALIAS assimp)
 
+# enable warnings as errors ########################################
+IF (MSVC)
+  TARGET_COMPILE_OPTIONS(assimp PRIVATE /WX)
+ELSE()
+  TARGET_COMPILE_OPTIONS(assimp PRIVATE -Werror)
+ENDIF()
+
 TARGET_INCLUDE_DIRECTORIES ( assimp PUBLIC
   $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../include>
   $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/../include>

code/Common/SceneCombiner.cpp

@@ -994,8 +994,7 @@ void SceneCombiner::CopySceneFlat(aiScene** _dest,const aiScene* src) {
     } else {
         *_dest = new aiScene();
     }
-
+    CopyScene(_dest, src, false);
-    ::memcpy(*_dest,src,sizeof(aiScene));
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -1066,7 +1065,7 @@ void SceneCombiner::Copy( aiMesh** _dest, const aiMesh* src ) {
     aiMesh* dest = *_dest = new aiMesh();
 
     // get a flat copy
-    ::memcpy(dest,src,sizeof(aiMesh));
+    *dest = *src;
 
     // and reallocate all arrays
     GetArrayCopy( dest->mVertices,   dest->mNumVertices );
@@ -1105,7 +1104,7 @@ void SceneCombiner::Copy(aiAnimMesh** _dest, const aiAnimMesh* src) {
     aiAnimMesh* dest = *_dest = new aiAnimMesh();
 
     // get a flat copy
-    ::memcpy(dest, src, sizeof(aiAnimMesh));
+    *dest = *src;
 
     // and reallocate all arrays
     GetArrayCopy(dest->mVertices, dest->mNumVertices);
@@ -1162,7 +1161,7 @@ void SceneCombiner::Copy(aiTexture** _dest, const aiTexture* src) {
     aiTexture* dest = *_dest = new aiTexture();
 
     // get a flat copy
-    ::memcpy(dest,src,sizeof(aiTexture));
+    *dest = *src;
 
     // and reallocate all arrays. We must do it manually here
     const char* old = (const char*)dest->pcData;
@@ -1192,7 +1191,7 @@ void SceneCombiner::Copy( aiAnimation** _dest, const aiAnimation* src ) {
     aiAnimation* dest = *_dest = new aiAnimation();
 
     // get a flat copy
-    ::memcpy(dest,src,sizeof(aiAnimation));
+    *dest = *src;
 
     // and reallocate all arrays
     CopyPtrArray( dest->mChannels, src->mChannels, dest->mNumChannels );
@@ -1208,7 +1207,7 @@ void SceneCombiner::Copy(aiNodeAnim** _dest, const aiNodeAnim* src) {
     aiNodeAnim* dest = *_dest = new aiNodeAnim();
 
     // get a flat copy
-    ::memcpy(dest,src,sizeof(aiNodeAnim));
+    *dest = *src;
 
     // and reallocate all arrays
     GetArrayCopy( dest->mPositionKeys, dest->mNumPositionKeys );
@@ -1224,7 +1223,7 @@ void SceneCombiner::Copy(aiMeshMorphAnim** _dest, const aiMeshMorphAnim* src) {
     aiMeshMorphAnim* dest = *_dest = new aiMeshMorphAnim();
 
     // get a flat copy
-    ::memcpy(dest,src,sizeof(aiMeshMorphAnim));
+    *dest = *src;
 
     // and reallocate all arrays
     GetArrayCopy( dest->mKeys, dest->mNumKeys );
@@ -1245,7 +1244,7 @@ void SceneCombiner::Copy( aiCamera** _dest,const  aiCamera* src) {
     aiCamera* dest = *_dest = new aiCamera();
 
     // get a flat copy, that's already OK
-    ::memcpy(dest,src,sizeof(aiCamera));
+    *dest = *src;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -1257,7 +1256,7 @@ void SceneCombiner::Copy(aiLight** _dest, const aiLight* src) {
     aiLight* dest = *_dest = new aiLight();
 
     // get a flat copy, that's already OK
-    ::memcpy(dest,src,sizeof(aiLight));
+    *dest = *src;
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -1269,10 +1268,7 @@ void SceneCombiner::Copy(aiBone** _dest, const aiBone* src) {
     aiBone* dest = *_dest = new aiBone();
 
     // get a flat copy
-    ::memcpy(dest,src,sizeof(aiBone));
+    *dest = *src;
-
-    // and reallocate all arrays
-    GetArrayCopy( dest->mWeights, dest->mNumWeights );
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -1283,7 +1279,7 @@ void SceneCombiner::Copy     (aiNode** _dest, const aiNode* src)
     aiNode* dest = *_dest = new aiNode();
 
     // get a flat copy
-    ::memcpy(dest,src,sizeof(aiNode));
+    *dest = *src;
 
     if (src->mMetaData) {
         Copy(&dest->mMetaData, src->mMetaData);

code/Common/SpatialSort.cpp

@@ -5,8 +5,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2020, assimp team
 
-
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -50,71 +48,60 @@ using namespace Assimp;
 
 // CHAR_BIT seems to be defined under MVSC, but not under GCC. Pray that the correct value is 8.
 #ifndef CHAR_BIT
-#   define CHAR_BIT 8
+#define CHAR_BIT 8
 #endif
 
-#ifdef _WIN32
+const aiVector3D PlaneInit(0.8523f, 0.34321f, 0.5736f);
-#    pragma warning(disable : 4127)  
-#endif // _WIN32
 
 // ------------------------------------------------------------------------------------------------
 // Constructs a spatially sorted representation from the given position array.
-SpatialSort::SpatialSort( const aiVector3D* pPositions, unsigned int pNumPositions,
+// define the reference plane. We choose some arbitrary vector away from all basic axises
-    unsigned int pElementOffset)
+// in the hope that no model spreads all its vertices along this plane.
-
+SpatialSort::SpatialSort(const aiVector3D *pPositions, unsigned int pNumPositions, unsigned int pElementOffset) :
-    // define the reference plane. We choose some arbitrary vector away from all basic axises
+        mPlaneNormal(PlaneInit) {
-    // in the hope that no model spreads all its vertices along this plane.
-    : mPlaneNormal(0.8523f, 0.34321f, 0.5736f)
-{
     mPlaneNormal.Normalize();
-    Fill(pPositions,pNumPositions,pElementOffset);
+    Fill(pPositions, pNumPositions, pElementOffset);
 }
 
 // ------------------------------------------------------------------------------------------------
-SpatialSort :: SpatialSort()
+SpatialSort::SpatialSort() :
-: mPlaneNormal(0.8523f, 0.34321f, 0.5736f)
+        mPlaneNormal(PlaneInit) {
-{
     mPlaneNormal.Normalize();
 }
 
 // ------------------------------------------------------------------------------------------------
 // Destructor
-SpatialSort::~SpatialSort()
+SpatialSort::~SpatialSort() {
-{
+    // empty
-    // nothing to do here, everything destructs automatically
 }
 
 // ------------------------------------------------------------------------------------------------
-void SpatialSort::Fill( const aiVector3D* pPositions, unsigned int pNumPositions,
+void SpatialSort::Fill(const aiVector3D *pPositions, unsigned int pNumPositions,
-    unsigned int pElementOffset,
+        unsigned int pElementOffset,
-    bool pFinalize /*= true */)
+        bool pFinalize /*= true */) {
-{
     mPositions.clear();
-    Append(pPositions,pNumPositions,pElementOffset,pFinalize);
+    Append(pPositions, pNumPositions, pElementOffset, pFinalize);
 }
 
 // ------------------------------------------------------------------------------------------------
-void SpatialSort :: Finalize()
+void SpatialSort::Finalize() {
-{
+    std::sort(mPositions.begin(), mPositions.end());
-    std::sort( mPositions.begin(), mPositions.end());
 }
 
 // ------------------------------------------------------------------------------------------------
-void SpatialSort::Append( const aiVector3D* pPositions, unsigned int pNumPositions,
+void SpatialSort::Append(const aiVector3D *pPositions, unsigned int pNumPositions,
-    unsigned int pElementOffset,
+        unsigned int pElementOffset,
-    bool pFinalize /*= true */)
+        bool pFinalize /*= true */) {
-{
     // store references to all given positions along with their distance to the reference plane
     const size_t initial = mPositions.size();
-    mPositions.reserve(initial + (pFinalize?pNumPositions:pNumPositions*2));
+    mPositions.reserve(initial + (pFinalize ? pNumPositions : pNumPositions * 2));
-    for( unsigned int a = 0; a < pNumPositions; a++)
+    for (unsigned int a = 0; a < pNumPositions; a++) {
-    {
+        const char *tempPointer = reinterpret_cast<const char *>(pPositions);
-        const char* tempPointer = reinterpret_cast<const char*> (pPositions);
+        const aiVector3D *vec = reinterpret_cast<const aiVector3D *>(tempPointer + a * pElementOffset);
-        const aiVector3D* vec   = reinterpret_cast<const aiVector3D*> (tempPointer + a * pElementOffset);
 
         // store position by index and distance
         ai_real distance = *vec * mPlaneNormal;
-        mPositions.push_back( Entry( static_cast<unsigned int>(a+initial), *vec, distance));
+        mPositions.push_back(Entry(static_cast<unsigned int>(a + initial), *vec, distance));
     }
 
     if (pFinalize) {
@@ -125,9 +112,8 @@ void SpatialSort::Append( const aiVector3D* pPositions, unsigned int pNumPositio
 
 // ------------------------------------------------------------------------------------------------
 // Returns an iterator for all positions close to the given position.
-void SpatialSort::FindPositions( const aiVector3D& pPosition,
+void SpatialSort::FindPositions(const aiVector3D &pPosition,
-    ai_real pRadius, std::vector<unsigned int>& poResults) const
+        ai_real pRadius, std::vector<unsigned int> &poResults) const {
-{
     const ai_real dist = pPosition * mPlaneNormal;
     const ai_real minDist = dist - pRadius, maxDist = dist + pRadius;
 
@@ -135,19 +121,18 @@ void SpatialSort::FindPositions( const aiVector3D& pPosition,
     poResults.clear();
 
     // quick check for positions outside the range
-    if( mPositions.size() == 0)
+    if (mPositions.size() == 0)
         return;
-    if( maxDist < mPositions.front().mDistance)
+    if (maxDist < mPositions.front().mDistance)
         return;
-    if( minDist > mPositions.back().mDistance)
+    if (minDist > mPositions.back().mDistance)
         return;
 
     // do a binary search for the minimal distance to start the iteration there
     unsigned int index = (unsigned int)mPositions.size() / 2;
     unsigned int binaryStepSize = (unsigned int)mPositions.size() / 4;
-    while( binaryStepSize > 1)
+    while (binaryStepSize > 1) {
-    {
+        if (mPositions[index].mDistance < minDist)
-        if( mPositions[index].mDistance < minDist)
             index += binaryStepSize;
         else
             index -= binaryStepSize;
@@ -157,21 +142,20 @@ void SpatialSort::FindPositions( const aiVector3D& pPosition,
 
     // depending on the direction of the last step we need to single step a bit back or forth
     // to find the actual beginning element of the range
-    while( index > 0 && mPositions[index].mDistance > minDist)
+    while (index > 0 && mPositions[index].mDistance > minDist)
         index--;
-    while( index < (mPositions.size() - 1) && mPositions[index].mDistance < minDist)
+    while (index < (mPositions.size() - 1) && mPositions[index].mDistance < minDist)
         index++;
 
     // Mow start iterating from there until the first position lays outside of the distance range.
     // Add all positions inside the distance range within the given radius to the result aray
     std::vector<Entry>::const_iterator it = mPositions.begin() + index;
-    const ai_real pSquared = pRadius*pRadius;
+    const ai_real pSquared = pRadius * pRadius;
-    while( it->mDistance < maxDist)
+    while (it->mDistance < maxDist) {
-    {
+        if ((it->mPosition - pPosition).SquareLength() < pSquared)
-        if( (it->mPosition - pPosition).SquareLength() < pSquared)
+            poResults.push_back(it->mIndex);
-            poResults.push_back( it->mIndex);
         ++it;
-        if( it == mPositions.end())
+        if (it == mPositions.end())
             break;
     }
 
@@ -180,70 +164,74 @@ void SpatialSort::FindPositions( const aiVector3D& pPosition,
 
 namespace {
 
-    // Binary, signed-integer representation of a single-precision floating-point value.
+// Binary, signed-integer representation of a single-precision floating-point value.
-    // IEEE 754 says: "If two floating-point numbers in the same format are ordered then they are
+// IEEE 754 says: "If two floating-point numbers in the same format are ordered then they are
-    //  ordered the same way when their bits are reinterpreted as sign-magnitude integers."
+//  ordered the same way when their bits are reinterpreted as sign-magnitude integers."
-    // This allows us to convert all floating-point numbers to signed integers of arbitrary size
+// This allows us to convert all floating-point numbers to signed integers of arbitrary size
-    //  and then use them to work with ULPs (Units in the Last Place, for high-precision
+//  and then use them to work with ULPs (Units in the Last Place, for high-precision
-    //  computations) or to compare them (integer comparisons are faster than floating-point
+//  computations) or to compare them (integer comparisons are faster than floating-point
-    //  comparisons on many platforms).
+//  comparisons on many platforms).
-    typedef ai_int BinFloat;
+typedef ai_int BinFloat;
 
-    // --------------------------------------------------------------------------------------------
+// --------------------------------------------------------------------------------------------
-    // Converts the bit pattern of a floating-point number to its signed integer representation.
+// Converts the bit pattern of a floating-point number to its signed integer representation.
-    BinFloat ToBinary( const ai_real & pValue) {
+BinFloat ToBinary(const ai_real &pValue) {
 
-        // If this assertion fails, signed int is not big enough to store a float on your platform.
+    // If this assertion fails, signed int is not big enough to store a float on your platform.
-        //  Please correct the declaration of BinFloat a few lines above - but do it in a portable,
+    //  Please correct the declaration of BinFloat a few lines above - but do it in a portable,
-        //  #ifdef'd manner!
+    //  #ifdef'd manner!
-        static_assert( sizeof(BinFloat) >= sizeof(ai_real), "sizeof(BinFloat) >= sizeof(ai_real)");
+    static_assert(sizeof(BinFloat) >= sizeof(ai_real), "sizeof(BinFloat) >= sizeof(ai_real)");
 
-        #if defined( _MSC_VER)
+#if defined(_MSC_VER)
-            // If this assertion fails, Visual C++ has finally moved to ILP64. This means that this
+    // If this assertion fails, Visual C++ has finally moved to ILP64. This means that this
-            //  code has just become legacy code! Find out the current value of _MSC_VER and modify
+    //  code has just become legacy code! Find out the current value of _MSC_VER and modify
-            //  the #if above so it evaluates false on the current and all upcoming VC versions (or
+    //  the #if above so it evaluates false on the current and all upcoming VC versions (or
-            //  on the current platform, if LP64 or LLP64 are still used on other platforms).
+    //  on the current platform, if LP64 or LLP64 are still used on other platforms).
-            static_assert( sizeof(BinFloat) == sizeof(ai_real), "sizeof(BinFloat) == sizeof(ai_real)");
+    static_assert(sizeof(BinFloat) == sizeof(ai_real), "sizeof(BinFloat) == sizeof(ai_real)");
 
-            // This works best on Visual C++, but other compilers have their problems with it.
+    // This works best on Visual C++, but other compilers have their problems with it.
-            const BinFloat binValue = reinterpret_cast<BinFloat const &>(pValue);
+    const BinFloat binValue = reinterpret_cast<BinFloat const &>(pValue);
-        #else
+    //::memcpy(&binValue, &pValue, sizeof(pValue));
-            // On many compilers, reinterpreting a float address as an integer causes aliasing
+    //return binValue;
-            // problems. This is an ugly but more or less safe way of doing it.
+#else
-            union {
+    // On many compilers, reinterpreting a float address as an integer causes aliasing
-                ai_real     asFloat;
+    // problems. This is an ugly but more or less safe way of doing it.
-                BinFloat    asBin;
+    union {
-            } conversion;
+        ai_real asFloat;
-            conversion.asBin    = 0; // zero empty space in case sizeof(BinFloat) > sizeof(float)
+        BinFloat asBin;
-            conversion.asFloat  = pValue;
+    } conversion;
-            const BinFloat binValue = conversion.asBin;
+    conversion.asBin = 0; // zero empty space in case sizeof(BinFloat) > sizeof(float)
-        #endif
+    conversion.asFloat = pValue;
+    const BinFloat binValue = conversion.asBin;
+#endif
 
-        // floating-point numbers are of sign-magnitude format, so find out what signed number
+    // floating-point numbers are of sign-magnitude format, so find out what signed number
-        //  representation we must convert negative values to.
+    //  representation we must convert negative values to.
-        // See http://en.wikipedia.org/wiki/Signed_number_representations.
+    // See http://en.wikipedia.org/wiki/Signed_number_representations.
 
-        // Two's complement?
+    // Two's complement?
-        if( (-42 == (~42 + 1)) && (binValue & 0x80000000))
+    bool DefaultValue = ((-42 == (~42 + 1)) && (binValue & 0x80000000));
-            return BinFloat(1 << (CHAR_BIT * sizeof(BinFloat) - 1)) - binValue;
+    bool OneComplement = ((-42 == ~42) && (binValue & 0x80000000));
-        // One's complement?
+    bool SignedMagnitude = ((-42 == (42 | (-0))) && (binValue & 0x80000000));
-        else if ( (-42 == ~42) && (binValue & 0x80000000))
+
-            return BinFloat(-0) - binValue;
+    if (DefaultValue)
-        // Sign-magnitude?
+        return BinFloat(1 << (CHAR_BIT * sizeof(BinFloat) - 1)) - binValue;
-        else if( (-42 == (42 | (-0))) && (binValue & 0x80000000)) // -0 = 1000... binary
+    // One's complement?
-            return binValue;
+    else if (OneComplement)
-        else
+        return BinFloat(-0) - binValue;
-            return binValue;
+    // Sign-magnitude?
-    }
+    else if (SignedMagnitude) // -0 = 1000... binary
+        return binValue;
+    else
+        return binValue;
+}
 
 } // namespace
 
 // ------------------------------------------------------------------------------------------------
 // Fills an array with indices of all positions identical to the given position. In opposite to
 // FindPositions(), not an epsilon is used but a (very low) tolerance of four floating-point units.
-void SpatialSort::FindIdenticalPositions( const aiVector3D& pPosition,
+void SpatialSort::FindIdenticalPositions(const aiVector3D &pPosition, std::vector<unsigned int> &poResults) const {
-    std::vector<unsigned int>& poResults) const
-{
     // Epsilons have a huge disadvantage: they are of constant precision, while floating-point
     //  values are of log2 precision. If you apply e=0.01 to 100, the epsilon is rather small, but
     //  if you apply it to 0.001, it is enormous.
@@ -269,20 +257,19 @@ void SpatialSort::FindIdenticalPositions( const aiVector3D& pPosition,
 
     // Convert the plane distance to its signed integer representation so the ULPs tolerance can be
     //  applied. For some reason, VC won't optimize two calls of the bit pattern conversion.
-    const BinFloat minDistBinary = ToBinary( pPosition * mPlaneNormal) - distanceToleranceInULPs;
+    const BinFloat minDistBinary = ToBinary(pPosition * mPlaneNormal) - distanceToleranceInULPs;
     const BinFloat maxDistBinary = minDistBinary + 2 * distanceToleranceInULPs;
 
     // clear the array in this strange fashion because a simple clear() would also deallocate
     // the array which we want to avoid
-    poResults.resize( 0 );
+    poResults.resize(0);
 
     // do a binary search for the minimal distance to start the iteration there
     unsigned int index = (unsigned int)mPositions.size() / 2;
     unsigned int binaryStepSize = (unsigned int)mPositions.size() / 4;
-    while( binaryStepSize > 1)
+    while (binaryStepSize > 1) {
-    {
         // Ugly, but conditional jumps are faster with integers than with floats
-        if( minDistBinary > ToBinary(mPositions[index].mDistance))
+        if (minDistBinary > ToBinary(mPositions[index].mDistance))
             index += binaryStepSize;
         else
             index -= binaryStepSize;
@@ -292,20 +279,19 @@ void SpatialSort::FindIdenticalPositions( const aiVector3D& pPosition,
 
     // depending on the direction of the last step we need to single step a bit back or forth
     // to find the actual beginning element of the range
-    while( index > 0 && minDistBinary < ToBinary(mPositions[index].mDistance) )
+    while (index > 0 && minDistBinary < ToBinary(mPositions[index].mDistance))
         index--;
-    while( index < (mPositions.size() - 1) && minDistBinary > ToBinary(mPositions[index].mDistance))
+    while (index < (mPositions.size() - 1) && minDistBinary > ToBinary(mPositions[index].mDistance))
         index++;
 
     // Now start iterating from there until the first position lays outside of the distance range.
     // Add all positions inside the distance range within the tolerance to the result array
     std::vector<Entry>::const_iterator it = mPositions.begin() + index;
-    while( ToBinary(it->mDistance) < maxDistBinary)
+    while (ToBinary(it->mDistance) < maxDistBinary) {
-    {
+        if (distance3DToleranceInULPs >= ToBinary((it->mPosition - pPosition).SquareLength()))
-        if( distance3DToleranceInULPs >= ToBinary((it->mPosition - pPosition).SquareLength()))
             poResults.push_back(it->mIndex);
         ++it;
-        if( it == mPositions.end())
+        if (it == mPositions.end())
             break;
     }
 
@@ -313,22 +299,19 @@ void SpatialSort::FindIdenticalPositions( const aiVector3D& pPosition,
 }
 
 // ------------------------------------------------------------------------------------------------
-unsigned int SpatialSort::GenerateMappingTable(std::vector<unsigned int>& fill, ai_real pRadius) const
+unsigned int SpatialSort::GenerateMappingTable(std::vector<unsigned int> &fill, ai_real pRadius) const {
-{
+    fill.resize(mPositions.size(), UINT_MAX);
-    fill.resize(mPositions.size(),UINT_MAX);
     ai_real dist, maxDist;
 
-    unsigned int t=0;
+    unsigned int t = 0;
-    const ai_real pSquared = pRadius*pRadius;
+    const ai_real pSquared = pRadius * pRadius;
     for (size_t i = 0; i < mPositions.size();) {
         dist = mPositions[i].mPosition * mPlaneNormal;
         maxDist = dist + pRadius;
 
         fill[mPositions[i].mIndex] = t;
-        const aiVector3D& oldpos = mPositions[i].mPosition;
+        const aiVector3D &oldpos = mPositions[i].mPosition;
-        for (++i; i < fill.size() && mPositions[i].mDistance < maxDist
+        for (++i; i < fill.size() && mPositions[i].mDistance < maxDist && (mPositions[i].mPosition - oldpos).SquareLength() < pSquared; ++i) {
-            && (mPositions[i].mPosition - oldpos).SquareLength() < pSquared; ++i)
-        {
             fill[mPositions[i].mIndex] = t;
         }
         ++t;
@@ -338,7 +321,7 @@ unsigned int SpatialSort::GenerateMappingTable(std::vector<unsigned int>& fill,
 
     // debug invariant: mPositions[i].mIndex values must range from 0 to mPositions.size()-1
     for (size_t i = 0; i < fill.size(); ++i) {
-        ai_assert(fill[i]<mPositions.size());
+        ai_assert(fill[i] < mPositions.size());
     }
 
 #endif

code/FBX/FBXConverter.cpp

@@ -3401,7 +3401,8 @@ void FBXConverter::ConvertGlobalSettings() {
     mSceneOut->mMetaData->Set(5, "CoordAxisSign", doc.GlobalSettings().CoordAxisSign());
     mSceneOut->mMetaData->Set(6, "OriginalUpAxis", doc.GlobalSettings().OriginalUpAxis());
     mSceneOut->mMetaData->Set(7, "OriginalUpAxisSign", doc.GlobalSettings().OriginalUpAxisSign());
-    mSceneOut->mMetaData->Set(8, "UnitScaleFactor", (double)doc.GlobalSettings().UnitScaleFactor());
+    //const double unitScaleFactor = (double)doc.GlobalSettings().UnitScaleFactor();
+    mSceneOut->mMetaData->Set(8, "UnitScaleFactor", doc.GlobalSettings().UnitScaleFactor());
     mSceneOut->mMetaData->Set(9, "OriginalUnitScaleFactor", doc.GlobalSettings().OriginalUnitScaleFactor());
     mSceneOut->mMetaData->Set(10, "AmbientColor", doc.GlobalSettings().AmbientColor());
     mSceneOut->mMetaData->Set(11, "FrameRate", (int)doc.GlobalSettings().TimeMode());

code/M3D/m3d.h

@@ -1556,7 +1556,7 @@ static int _m3dstbi__create_png_image(_m3dstbi__png *a, unsigned char *image_dat
     return 1;
 }
 
-static int _m3dstbi__compute_transparency(_m3dstbi__png *z, unsigned char tc[3], int out_n) {
+static int _m3dstbi__compute_transparency(_m3dstbi__png *z, unsigned char* tc, int out_n) {
     _m3dstbi__context *s = z->s;
     _m3dstbi__uint32 i, pixel_count = s->img_x * s->img_y;
     unsigned char *p = z->out;
@@ -1639,7 +1639,7 @@ static int _m3dstbi__expand_png_palette(_m3dstbi__png *a, unsigned char *palette
 
 static int _m3dstbi__parse_png_file(_m3dstbi__png *z, int scan, int req_comp) {
     unsigned char palette[1024], pal_img_n = 0;
-    unsigned char has_trans = 0, tc[3];
+    unsigned char has_trans = 0, tc[3] = {};
     _m3dstbi__uint16 tc16[3];
     _m3dstbi__uint32 ioff = 0, idata_limit = 0, i, pal_len = 0;
     int first = 1, k, interlace = 0, color = 0;
@@ -4350,7 +4350,7 @@ unsigned char *m3d_save(m3d_t *model, int quality, int flags, unsigned int *size
     M3D_INDEX last, *vrtxidx = NULL, *mtrlidx = NULL, *tmapidx = NULL, *skinidx = NULL;
     uint32_t idx, numcmap = 0, *cmap = NULL, numvrtx = 0, maxvrtx = 0, numtmap = 0, maxtmap = 0, numproc = 0;
     uint32_t numskin = 0, maxskin = 0, numstr = 0, maxt = 0, maxbone = 0, numgrp = 0, maxgrp = 0, *grpidx = NULL;
-    uint8_t *opa;
+    uint8_t *opa = nullptr;
     m3dcd_t *cd;
     m3dc_t *cmd;
     m3dstr_t *str = NULL;

code/glTF/glTFAsset.h

@@ -382,7 +382,12 @@ namespace glTF
         {
             friend struct Accessor;
 
-            Accessor& accessor;
+        // This field is reported as not used, making it protectd is the easiest way to work around it without going to the bottom of what the problem is:
+        // ../code/glTF2/glTF2Asset.h:392:19: error: private field 'accessor' is not used [-Werror,-Wunused-private-field]
+        protected:
+            Accessor &accessor;
+
+        private:
             uint8_t* data;
             size_t elemSize, stride;
 

code/glTF2/glTF2Asset.h

@@ -389,12 +389,18 @@ struct Accessor : public Object {
     class Indexer {
         friend struct Accessor;
 
+    // This field is reported as not used, making it protectd is the easiest way to work around it without going to the bottom of what the problem is:
+    // ../code/glTF2/glTF2Asset.h:392:19: error: private field 'accessor' is not used [-Werror,-Wunused-private-field]
+    protected:
         Accessor &accessor;
+
+    private:
         uint8_t *data;
         size_t elemSize, stride;
 
         Indexer(Accessor &acc);
     
+        
     public:
         //! Accesses the i-th value as defined by the accessor
         template <class T>

contrib/irrXML/irrString.h

@@ -636,9 +636,6 @@ private:
 		for (s32 i=0; i<amount; ++i)
 			array[i] = old_array[i];
 		
-		if (allocated < used)
-			used = allocated;
-		
 		delete [] old_array;
 	}
 

include/assimp/SpatialSort.h

@@ -46,11 +46,11 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define AI_SPATIALSORT_H_INC
 
 #ifdef __GNUC__
-#   pragma GCC system_header
+#pragma GCC system_header
 #endif
 
-#include <vector>
 #include <assimp/types.h>
+#include <vector>
 
 namespace Assimp {
 
@@ -62,10 +62,8 @@ namespace Assimp {
  * time, with O(n) worst case complexity when all vertices lay on the plane. The plane is chosen
  * so that it avoids common planes in usual data sets. */
 // ------------------------------------------------------------------------------------------------
-class ASSIMP_API SpatialSort
+class ASSIMP_API SpatialSort {
-{
 public:
-
     SpatialSort();
 
     // ------------------------------------------------------------------------------------
@@ -76,14 +74,12 @@ public:
      * @param pNumPositions Number of vectors to expect in that array.
      * @param pElementOffset Offset in bytes from the beginning of one vector in memory
      *   to the beginning of the next vector. */
-    SpatialSort( const aiVector3D* pPositions, unsigned int pNumPositions,
+    SpatialSort(const aiVector3D *pPositions, unsigned int pNumPositions,
-        unsigned int pElementOffset);
+            unsigned int pElementOffset);
 
     /** Destructor */
     ~SpatialSort();
 
-public:
-
     // ------------------------------------------------------------------------------------
     /** Sets the input data for the SpatialSort. This replaces existing data, if any.
      *  The new data receives new indices in ascending order.
@@ -97,17 +93,15 @@ public:
      *   required in order to use #FindPosition() or #GenerateMappingTable().
      *   If you don't finalize yet, you can use #Append() to add data from
      *   other sources.*/
-    void Fill( const aiVector3D* pPositions, unsigned int pNumPositions,
+    void Fill(const aiVector3D *pPositions, unsigned int pNumPositions,
-        unsigned int pElementOffset,
+            unsigned int pElementOffset,
-        bool pFinalize = true);
+            bool pFinalize = true);
-
 
     // ------------------------------------------------------------------------------------
     /** Same as #Fill(), except the method appends to existing data in the #SpatialSort. */
-    void Append( const aiVector3D* pPositions, unsigned int pNumPositions,
+    void Append(const aiVector3D *pPositions, unsigned int pNumPositions,
-        unsigned int pElementOffset,
+            unsigned int pElementOffset,
-        bool pFinalize = true);
+            bool pFinalize = true);
-
 
     // ------------------------------------------------------------------------------------
     /** Finalize the spatial hash data structure. This can be useful after
@@ -123,8 +117,8 @@ public:
      * @param poResults The container to store the indices of the found positions.
      *   Will be emptied by the call so it may contain anything.
      * @return An iterator to iterate over all vertices in the given area.*/
-    void FindPositions( const aiVector3D& pPosition, ai_real pRadius,
+    void FindPositions(const aiVector3D &pPosition, ai_real pRadius,
-        std::vector<unsigned int>& poResults) const;
+            std::vector<unsigned int> &poResults) const;
 
     // ------------------------------------------------------------------------------------
     /** Fills an array with indices of all positions identical to the given position. In
@@ -133,8 +127,8 @@ public:
      * @param pPosition The position to look for vertices.
      * @param poResults The container to store the indices of the found positions.
      *   Will be emptied by the call so it may contain anything.*/
-    void FindIdenticalPositions( const aiVector3D& pPosition,
+    void FindIdenticalPositions(const aiVector3D &pPosition,
-        std::vector<unsigned int>& poResults) const;
+            std::vector<unsigned int> &poResults) const;
 
     // ------------------------------------------------------------------------------------
     /** Compute a table that maps each vertex ID referring to a spatially close
@@ -144,8 +138,8 @@ public:
      * @param pRadius Maximal distance from the position a vertex may have to
      *   be counted in.
      *  @return Number of unique vertices (n).  */
-    unsigned int GenerateMappingTable(std::vector<unsigned int>& fill,
+    unsigned int GenerateMappingTable(std::vector<unsigned int> &fill,
-        ai_real pRadius) const;
+            ai_real pRadius) const;
 
 protected:
     /** Normal of the sorting plane, normalized. The center is always at (0, 0, 0) */
@@ -159,15 +153,17 @@ protected:
         ai_real mDistance; ///< Distance of this vertex to the sorting plane
 
         Entry() AI_NO_EXCEPT
-        : mIndex( 999999999 ), mPosition(), mDistance( 99999. ) {
+                : mIndex(999999999),
+                  mPosition(),
+                  mDistance(99999.) {
             // empty
         }
-        Entry( unsigned int pIndex, const aiVector3D& pPosition, ai_real pDistance)
+        Entry(unsigned int pIndex, const aiVector3D &pPosition, ai_real pDistance) :
-        : mIndex( pIndex), mPosition( pPosition), mDistance( pDistance) {
+                mIndex(pIndex), mPosition(pPosition), mDistance(pDistance) {
             // empty
         }
 
-        bool operator < (const Entry& e) const { return mDistance < e.mDistance; }
+        bool operator<(const Entry &e) const { return mDistance < e.mDistance; }
     };
 
     // all positions, sorted by distance to the sorting plane

include/assimp/mesh.h

@@ -308,7 +308,10 @@ struct aiBone {
 
     //! Copy constructor
     aiBone(const aiBone &other) :
-            mName(other.mName), mNumWeights(other.mNumWeights), mWeights(nullptr), mOffsetMatrix(other.mOffsetMatrix) {
+            mName(other.mName),
+            mNumWeights(other.mNumWeights),
+            mWeights(nullptr),
+            mOffsetMatrix(other.mOffsetMatrix) {
         if (other.mWeights && other.mNumWeights) {
             mWeights = new aiVertexWeight[mNumWeights];
             ::memcpy(mWeights, other.mWeights, mNumWeights * sizeof(aiVertexWeight));

include/assimp/metadata.h

@@ -320,7 +320,7 @@ struct aiMetadata {
     }
 
     template <typename T>
-    inline bool Set( const std::string &key, const T &value ) {
+    inline bool Set(const std::string &key, const T &value) {
         if (key.empty()) {
             return false;
         }

test/CMakeLists.txt

@@ -86,6 +86,7 @@ SET( COMMON
   unit/utStringUtils.cpp
   unit/Common/uiScene.cpp
   unit/Common/utLineSplitter.cpp
+  unit/Common/utSpatialSort.cpp
 )
 
 SET( IMPORTERS

test/unit/Common/utSpatialSort.cpp

@@ -0,0 +1,84 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+#include "UnitTestPCH.h"
+
+#include <assimp/SpatialSort.h>
+
+using namespace Assimp;
+
+class utSpatialSort : public ::testing::Test {
+public
+        :
+    aiVector3D *vecs;
+
+protected:
+    void SetUp() override {
+        ::srand(static_cast<unsigned>(time(0)));
+        vecs = new aiVector3D[100];
+        for (size_t i = 0; i < 100; ++i) {
+            vecs[i].x = static_cast<float>(rand()) / (static_cast<float>(RAND_MAX / 100));
+            vecs[i].y = static_cast<float>(rand()) / (static_cast<float>(RAND_MAX / 100));
+            vecs[i].z = static_cast<float>(rand()) / (static_cast<float>(RAND_MAX / 100));
+        }
+    }
+
+    void TearDown() override {
+        delete[] vecs;
+    }
+};
+
+TEST_F( utSpatialSort, findIdenticalsTest ) {
+    SpatialSort sSort;
+    sSort.Fill(vecs, 100, sizeof(aiVector3D));
+
+    std::vector<unsigned int> indices;
+    sSort.FindIdenticalPositions(vecs[0], indices);
+    EXPECT_EQ(1u, indices.size());
+}
+
+TEST_F(utSpatialSort, findPositionsTest) {
+    SpatialSort sSort;
+    sSort.Fill(vecs, 100, sizeof(aiVector3D));
+
+    std::vector<unsigned int> indices;
+    sSort.FindPositions(vecs[0], 0.01f, indices);
+    EXPECT_EQ(1u, indices.size());
+}

test/unit/utFBXImporterExporter.cpp

@@ -210,13 +210,13 @@ TEST_F(utFBXImporterExporter, importUnitScaleFactor) {
     EXPECT_NE(nullptr, scene);
     EXPECT_NE(nullptr, scene->mMetaData);
 
-    double factor(0.0);
+    float factor(0.0f);
     scene->mMetaData->Get("UnitScaleFactor", factor);
-    EXPECT_DOUBLE_EQ(500.0, factor);
+    EXPECT_EQ(500.0f, factor);
 
-    scene->mMetaData->Set("UnitScaleFactor", factor * 2);
+    scene->mMetaData->Set("UnitScaleFactor", factor * 2.0f);
     scene->mMetaData->Get("UnitScaleFactor", factor);
-    EXPECT_DOUBLE_EQ(1000.0, factor);
+    EXPECT_EQ(1000.0f, factor);
 }
 
 TEST_F(utFBXImporterExporter, importEmbeddedAsciiTest) {

test/unit/utStringUtils.cpp

@@ -5,8 +5,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2020, assimp team
 
-
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,