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Check for underflow in the debug USUB32.

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This commit is contained in:
Ralph Giles 2011-11-30 11:54:20 -08:00
parent 9357ae976e
commit a855a1f0ff
1 changed files with 4 additions and 0 deletions
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4
celt/fixed_debug.h
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@ -271,6 +271,10 @@ static inline unsigned int USUB32_(unsigned long long a, unsigned long long b, c
{ {
fprintf (stderr, "USUB32: inputs are not uint32: %llu %llu in %s: line %d\n", a, b, file, line); fprintf (stderr, "USUB32: inputs are not uint32: %llu %llu in %s: line %d\n", a, b, file, line);
} }
if (a<b)
{
fprintf (stderr, "USUB32: inputs underflow: %llu < %llu in %s: line %d\n", a, b, file, line);
}
res = a-b; res = a-b;
if (!VERIFY_UINT(res)) if (!VERIFY_UINT(res))
{ {