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#include <stdarg.h>
#include <sys/types.h>
int vsnprintf (char *str,size_t size,const char *format, va_list arg_ptr);
int snprintf(char *str,size_t size,const char *format,...)
{
int n;
va_list arg_ptr;
va_start(arg_ptr, format);
n=vsnprintf(str,size,format,arg_ptr);
va_end (arg_ptr);
return n;
}
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