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# fast_atoreal_move: avoid floating-point casts. Compilers have trouble optimizing this. 

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@1144 67173fc5-114c-0410-ac8e-9d2fd5bffc1f
pull/5/head
aramis_acg 2012-02-02 22:53:26 +00:00
parent 15e50959e6
commit 16b3d19f7f
1 changed files with 3 additions and 3 deletions
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6
code/fast_atof.h
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@ -257,7 +257,7 @@ inline const char* fast_atoreal_move( const char* c, Real& out)
if (*c == 'e' || *c == 'E') { if (*c == 'e' || *c == 'E') {
++c; ++c;
bool einv = (*c=='-'); const bool einv = (*c=='-');
if (einv || *c=='+') { if (einv || *c=='+') {
++c; ++c;
} }
@ -267,13 +267,13 @@ inline const char* fast_atoreal_move( const char* c, Real& out)
// bad considering how frequently fast_atoreal_move<float> is called in Assimp. // bad considering how frequently fast_atoreal_move<float> is called in Assimp.
Real exp = static_cast<Real>( strtoul10_64(c, &c) ); Real exp = static_cast<Real>( strtoul10_64(c, &c) );
if (einv) { if (einv) {
exp *= static_cast<Real>(-1.0f); exp = -exp;
} }
f *= pow(static_cast<Real>(10.0f), exp); f *= pow(static_cast<Real>(10.0f), exp);
} }
if (inv) { if (inv) {
f *= static_cast<Real>(-1.0f); f = -f;
} }
out = f; out = f;
return c; return c;