strdupa in Windows

by

my_alloca.h

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#ifndef _MY_ALLOCA_H_
#define _MY_ALLOCA_H_
 
#include <malloc.h>
 
__declspec(thread) extern size_t strdupa_len;
__declspec(thread) extern char* strdupa_p;
#define strdupa(_str) \
( \
	strdupa_len = strlen(_str), \
	strdupa_p = (char*)_alloca(strdupa_len + 1), \
	memcpy(strdupa_p, _str, strdupa_len + 1), \
	strdupa_p \
)
 
#endif

my_alloca.c

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#include "my_alloca.h"
__declspec(thread) size_t strdupa_len;
__declspec(thread) char* strdupa_p;

example.c

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#include "my_alloca.h"
 
int main()
{
	char* p = strdupa("hi");
}