strange errors

Hey guys, I was just trying out some exercises in this textbook I just got here " Programming in C by Kochan." I use the compiler "Borland C++ BuilderX."
While trying this simple program, the compiler gives me an error message that "_Bool" is an undefined symbol!!! This has to be crazy. Here's the code:

Code:

#include <stdio.h>

int main(void)
{
    int     integerVar = 100;
    float   floatingVar = 331.79;
    double  doubleVar = 8.44e+11;
    char    charVar = 'W';

    _Bool   boolVar = 0;

    printf("integerVar = %i\n", integerVar);
    printf("floatingVar = %f\n", floatingVar);
    printf("doubleVar = %e\n", doubleVar);
    printf("doubleVar = %g\n", doubleVar);
    printf("charVar = %c\n", charVar);
    getchar();

    return 0;
}

bool is valid in C++, not in C..

hmmm, so kochan is the crazy one afterall... lol

One second ping. I just went through iso9899:1999(Programming Languages-C) also called C99 and it does define _Bool.
Section 6.2.5 no.2 defines _Bool as an object large to store the values 0 and 1.so there must be something wrong somewhere!!!

well, i guess so, lol.. but, i dont understand how bool entered a C code !!
C has only 5 data types.. void, char, int, double and long
C++ has 2 more .. bool and wchar_t.

i was speaking according to the c89 standard... i really dont know about the c99 standard..
i really need to get a copy of the c99 standard..

Well, ping, even stranger things are happening bcos, wchar_t is featured in c99 as well. lol

hey, I downloaded it yesterday. I can send it to you. only 1.33Mb

Thanks Dave. Any suggestions of a good IDE I could use...

Try Dev CPP - then you should be able to use <stdbool.h> and the _Bool macro.