making a threadsafe localtime

[nik_cain]

hi,

Apparently MinGW hasn't got localtime_r, and I was concerned about the non thread safeness of using localtime.

I've added localtime_r to my code with the following;

#ifdef Win32
inline struct tm* localtime_r (const time_t *clock, struct tm *result) { 
	if (!clock || !result) return NULL;
	memcpy(result,localtime(clock),sizeof(*result)); 
	return result; 
}
#endif

Is that actually safe, or is it merely minimising potential problems?

nik