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Merge pull request #338 from jdduke/fast_atof_fix_final 

Gracefully handle NaN/inf values in fast_atoreal_move
pull/344/head
Alexander Gessler 2014-08-20 19:29:44 -07:00
parent 7ff7b783ee ed124ccbab
commit fddae20cb7
1 changed files with 32 additions and 12 deletions
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44
code/fast_atof.h
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@ -16,7 +16,9 @@
#define __FAST_A_TO_F_H_INCLUDED__
#include <math.h>
#include <limits.h>
#include <limits>
#include "StringComparison.h"
namespace Assimp
{
@ -236,18 +238,36 @@ inline const char* fast_atoreal_move( const char* c, Real& out, bool check_comma
++c;
}
if (!(c[0] >= '0' && c[0] <= '9') &&
!(c[0] == '.' && c[1] >= '0' && c[1] <= '9'))
{
throw std::invalid_argument("Cannot parse string "
"as real number: does not start with digit "
"or decimal point followed by digit.");
}
if ((c[0] == 'N' || c[0] == 'n') && ASSIMP_strincmp(c, "nan", 3) == 0)
{
out = std::numeric_limits<Real>::quiet_NaN();
c += 3;
return c;
}
if (*c != '.')
{
f = static_cast<Real>( strtoul10_64 ( c, &c) );
}
if ((c[0] == 'I' || c[0] == 'i') && ASSIMP_strincmp(c, "inf", 3) == 0)
{
out = std::numeric_limits<Real>::infinity();
c += 3;
if ((c[0] == 'I' || c[0] == 'i') && ASSIMP_strincmp(c, "inity", 5) == 0)
{
c += 5;
}
return c;
}
if (!(c[0] >= '0' && c[0] <= '9') &&
!(c[0] == '.' && c[1] >= '0' && c[1] <= '9'))
{
throw std::invalid_argument("Cannot parse string "
"as real number: does not start with digit "
"or decimal point followed by digit.");
}
if (*c != '.')
{
f = static_cast<Real>( strtoul10_64 ( c, &c) );
}
if ((*c == '.' || (check_comma && c[0] == ',')) && c[1] >= '0' && c[1] <= '9')
{