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Code Issues

check for negative values before casting away. thanks, Alex

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This commit is contained in:
verbguy 2009-11-09 22:23:36 +00:00
parent 0d5a398cc3
commit 88dadd2403
1 changed files with 6 additions and 2 deletions
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8
src/jrd/perf.cpp
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@ -98,10 +98,14 @@ static int perf_format(const P* before, const P* after,
* *
**************************************/ **************************************/
SCHAR c; SCHAR c;
SLONG buffer_length = buf_len ? *buf_len : 0; SLONG buffer_length = buf_len ? *buf_len : 0;
SCHAR* p = buffer; SCHAR* p = buffer;
if (buffer_length < 0)
{
buffer_length = 0;
}
while ((c = *string++) && c != '$') while ((c = *string++) && c != '$')
{ {
if (c != '!') if (c != '!')
@ -186,7 +190,7 @@ static int perf_format(const P* before, const P* after,
} }
*p = 0; *p = 0;
const int length = p - buffer; const int length = static_cast<int>(p - buffer);
if (buffer_length && (buffer_length -= length) >= 0) { if (buffer_length && (buffer_length -= length) >= 0) {
memset(p, ' ', static_cast<size_t>(buffer_length)); memset(p, ' ', static_cast<size_t>(buffer_length));
} }