nldbl-vsnprintf.c

glibc 库, 不仅可以学习使用库函数,还可以学习函数的具体实现,是提高功力的好资料

#include "nldbl-compat.h"

int
attribute_hidden
vsnprintf (char *string, size_t maxlen, const char *fmt, va_list ap)
{
  return __nldbl_vsnprintf (string, maxlen, fmt, ap);
}
extern __typeof (vsnprintf) __vsnprintf attribute_hidden;
weak_alias (vsnprintf, __vsnprintf)