Question

I’m writing a demo program from an educational book made to teach “C” for Unix and Windows. However, sometimes I come across code that, when typed exactly, does not want to work.

Eg.

#include <stdio.h>

int main()

{
    /*This next line is the error */

    int num = 2, bool = 0;

    if ( (num==2) && (!bool) )
    {
         printf("The first test is untrue\n");
    }
    else if( (num==2) && (!bool) )
    {
         printf("The second test is true\n");
    }
    else if( (num==2) && (bool==0) )
    {
         printf("The third test is true - but unreached\n");
    }
    return 0;
}

Anyway, like I mentioned in the title, I am curious if I have these variables declared properly. I am using a windows OS (7).

Answer 1

With a C compiler, there shouldn’t be an error because bool is neither a type nor a reserved word in C.

With a C++ compiler, however, you will probably get a parsing error.