newlib-cygwin/newlib/libc/syscalls/syssbrk.c

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/* connector for sbrk */
#include <reent.h>
#include <unistd.h>
extern void *_sbrk_r (struct _reent *, ptrdiff_t);
extern void *_sbrk (ptrdiff_t);
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void *
sbrk (incr)
ptrdiff_t incr;
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{
#ifdef REENTRANT_SYSCALLS_PROVIDED
return _sbrk_r (_REENT, incr);
#else
return _sbrk (incr);
#endif
}