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unicode-01.cpp
files-08.c 233 B
#include <stdio.h>
#include <errno.h>
#include <error.h>
int main (void)
{
FILE *f = fopen ("fhello.txt", "w");
if (!f)
error (errno, errno, "cannot open file");
fprintf (f, "Hello, world!\n");
fclose (f);
return 0;
}