getcwd() problem
egor duda
deo@logos-m.ru
Fri Oct 5 05:26:00 GMT 2001
Hi!
Friday, 05 October, 2001 Yasushi Higuchi yzone@mail.raidway.ne.jp wrote:
YH> I found a problem in the getcwd() function in recent snapshot.
[...]
>> char *cwd = getcwd(NULL, 256);
[...]
Single Unix Specification v2 says that "If buf is a null pointer, the
behaviour of getcwd() is undefined."
YH> Reference: FreeBSD manpages
>>STANDARDS
>>The getcwd() function conforms to ISO 9899: 1990 (``ISO C''). The ability
>>to specify a NULL pointer and have getcwd() allocate memory as necessary
>>is an extension.
cygwin doesn't support this extension. it's arguable whether it should
be added or not. code that implicitly allocates (on doesn't allocate,
depending in parameters) memory on heap is a source of potential
memory leaks.
Egor. mailto:deo@logos-m.ru ICQ 5165414 FidoNet 2:5020/496.19
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