Question

I am trying to compile a very simple C program. Installed MinGW using auto installer, then added C:\MinGW\bin on my environment variable.

test.c

#include <stdio.h>
int main()
{
  printf("Hello");
  return 0;
}

When I compile this:

gcc test.c -o test.exe

But I got this error,

test.c: In function ‘main’: test.c:5:12: warning: character constant
too long for its type [enabled by defau lt] test.c:5:5: warning:
passing argument 1 of ‘printf’ makes pointer from integer w ithout a
cast [enabled by default]
c:\mingw\bin../lib/gcc/mingw32/4.6.2/../../../../include/stdio.h:294:37:
note: expected ‘const char *’ but argument is of type ‘int’

Pardon for being noob, trying to learn something worthy. Thanks!

Answer 1

The error message that you are getting matches exactly the error message that GCC would generate for the following code:

#include <stdio.h>
int main()
{
  printf('Hello');
  return 0;
}

That is the double quotes got replaced with single quotes.

Use notepad or better Notepad++ to check what is going on.