This is the mail archive of the gcc-bugs@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

loop bug using mingw3.2 and cygwin in M$ Windows


I think that maybe I should post this to bugzilla, but I think I'll post
it here first to see if anyone has
any other suggestions.

I am guessing this to be an OS problem, or the enter after the selection
is causing it.   I have
tried it in cygwin, mingw3.2, and mingw2.x.  I have also tried it in C++
with cin >> varfoo;
and it glides right over that one too.  I am pretty fresh at
programming, and
I am still getting my feet wet in newsgroups too.

Thanks for any insight,
Gerald Lafreniere
aka spingoogL

Running this code you will produce the bug if you input anything other
than 1 2 3 or 4

system("gcc -v");
Using built-in specs.
Configured with: ../gcc/configure --with-g
mingw32 --target=mingw32 --prefix=/mingw -
-languages=f77,c++,objc,ada --disable-win3
Thread model: win32
gcc version 3.2 (mingw special 20020817-1)

Using Bloodshed's Dev-Cpp front-end.

OS is Win2K and WinXP

(*** CODE STARTS BELOW ***)

#include <stdio.h>

int DoMenu(void);

int main(void)
{
    int i='\0';

    i=DoMenu();
    printf("\n%c\n", i);
    system("Pause");

    return 0;
}

int DoMenu(void)
{
    int loop=1;
    int c;

    while (loop){
        printf("\nEnter a selection between 1 and 4:  ");
        if ( (c=getchar())>='1' && c<='4' )
                return c;
        else {
                printf("\n\nIf you see this, then you will find\n");
                printf("that the loop went twice, and skipped\n");
                printf("the getchar() function.\n\n");
        }
    }
}


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]