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fix strict aliasing issues

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Patch by Przemysław Iskra (#3805)
This commit is contained in:
Ludwig Nussel 2008-11-03 17:03:54 +00:00
parent f86f8e8ed8
commit c754d6fdfb
15 changed files with 91 additions and 108 deletions
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26
code/qcommon/q_math.c
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@ -501,10 +501,7 @@ void VectorRotate( vec3_t in, vec3_t matrix[3], vec3_t out )
*/
float Q_rsqrt( float number )
{
union {
float f;
int i;
} t;
floatint_t t;
float x2, y;
const float threehalfs = 1.5F;
@ -519,9 +516,10 @@ float Q_rsqrt( float number )
}
float Q_fabs( float f ) {
int tmp = * ( int * ) &f;
tmp &= 0x7FFFFFFF;
return * ( float * ) &tmp;
floatint_t fi;
fi.f = f;
fi.i &= 0x7FFFFFFF;
return fi.f;
}
#endif
@ -1301,15 +1299,11 @@ Don't pass doubles to this
*/
int Q_isnan( float x )
{
union
{
float f;
unsigned int i;
} t;
floatint_t fi;
t.f = x;
t.i &= 0x7FFFFFFF;
t.i = 0x7F800000 - t.i;
fi.f = x;
fi.ui &= 0x7FFFFFFF;
fi.ui = 0x7F800000 - fi.ui;
return (int)( (unsigned int)t.i >> 31 );
return (int)( (unsigned int)fi.ui >> 31 );
}