[Mingw-users] Apparent bug in libc routine fputc

[Edmund B. <ne...@ya...>]

Hi,

I am a new user of gcc-2.95.2 on a PC running Windows
98.  Right away I discovered what seems to be a bug in
the standard library routine fputc (and also fwrite):
If one tries to write a single byte with integer value
10, fputc writes *two* bytes: 13,10.  A simple test
code (appended) illustrates this.

I didn't find any mention of this at the egroups
archive, which is why I am posting to this list.  Is
anyone familiar with this bug?  Is there a workaround?

Thanks,
Bev


/* Test program to illustrate bug in Mingw gcc-2.95.2
stdio/libc routine fputc.
   The program is supposed to write a single byte to
test.dat, namely the
   integer value entered at runtime.  It works
correctly except for the
   integer value 10.  In that case, it writes out 2
bytes: 13,10. */

#include <stdio.h>

void main ()
{
    int a;
    FILE *fp;

    printf("Enter integer (0-255) to write to file
test.dat: ");
    scanf("%d",&a);

    fp = fopen("test.dat","w");
    putc(a,fp);
    fclose(fp);
}

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