memory leak on regular expression (regex.c)

[amihud bruchim <amihudb at yahoo dot com>]

Hello, 

I found a memory leak on regcomp function - gcc-4.4.2 (i used Memory validator tool to confirm it) . 
On regcomp this line if (re_compile_fastmap (preg) == -2) 
is the cause to the memory leak (it calls to re_compile_fastmap function that allocates memory that is not release) 
The code of my program to see the memory leak is: 

int main() { 
for (size_t i=0; i<1000000; ++i) { 
std::string text("aaaaa");; 
static const int MAX_PARTS = 10; 
static const int flags = REG_EXTENDED; 
regex_t _compiled; 
regmatch_t _sub[MAX_PARTS]; 
int res = regcomp(&_compiled, "aaaaa", flags); 
bool matched = (regexec(&_compiled, text.c_str(), MAX_PARTS, _sub, 0) != REG_NOMATCH); 
regfree(&_compiled); 
} 
return 0; 

Is there a bug fix to it? 

Thanks, 

Amihud 


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