glibc/stdio-common/scanf4.c

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#include <stdio.h>
int main(int arc, char *argv)
{
int n, res;
unsigned int val;
FILE *fp = fopen ("/dev/null", "r");
val = 0;
res = fscanf(fp, "%n", &val);
printf("Result of fscanf %%n = %d\n", res);
printf("Scanned format = %d\n", val);
res = fscanf(fp, "");
printf("Result of fscanf \"\" = %d\n", res);
if (res != 0)
abort ();
res = fscanf(fp, "BLURB");
printf("Result of fscanf \"BLURB\" = %d\n", res);
if (res >= 0)
abort ();
fclose (fp);
return 0;
return 0;
}