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[qcommon] Use unsigned types where wrapping arithmetic is intended

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The use of signed types in these expressions lead to overflow, hence undefined behaviour. The "sum" aggregator in Com_TouchMemory isn't even used (and presumbably just exists to inhibit optimizations from removing the memory access).
This commit is contained in:
Thomas Köppe 2017-10-03 01:46:37 +01:00 committed by Zack Middleton
parent a83ae01d93
commit b3223dcfcb
2 changed files with 2 additions and 2 deletions
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2
code/qcommon/common.c
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@ -1376,7 +1376,7 @@ Touch all known used data to make sure it is paged in
void Com_TouchMemory( void ) {
int start, end;
int i, j;
int sum;
unsigned sum;
memblock_t *block;
Z_CheckHeap();

2
code/qcommon/q_math.c
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@ -148,7 +148,7 @@ vec3_t bytedirs[NUMVERTEXNORMALS] =
//==============================================================
int Q_rand( int *seed ) {
*seed = (69069 * *seed + 1);
*seed = (69069U * *seed + 1U);
return *seed;
}