problem with bool function in C

[corel]

Hello.
I'm trying to build a program that will identify (from a text file given to it)
a palindrome.
Now i know that my program does not work and i need to work things around a bit but i keep receiving this strange error about bool function:


error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘isPalindrome’


my program is this (it uses the reverse fnction that i have built to reverse the string and if there is white spaces in that string - it will ignore them to form one big string that i can work with later.)



#include <stdio.h>
#include <string.h>
#include <math.h>

bool isPalindrome(char fname[50]);
char *str_dopel(char *str1);

char *str_dopel(char *str1)
{
register int i;
char *str2;
str2 = malloc(sizeof(str1));
int ascii_value;
int length = strlen(str1);
for (i = strlen(str1)-1; i > -1; i--) {

ascii_value = (int)str1[i];
if (ascii_value == 32) {

}else
{
str2[length - i] = str1[i-1];
}

}


return (str2);

}


bool isPalindrome(char fname[50])
{
FILE *file;

file = fopen(fname, "r");
if (file == NULL) {
printf("Error: Cannot open file.\n");
return false;
}
else {
printf("File Opened, checking for palindrome...");
}
char line[BUFSIZ];
char data[20][32];
while (fgets(line, sizeof line, file) != NULL)
{
if (str_dopel(line) == line)
printf("%s\n", line);
return true;
} else
{
printf("not palindrome\n");
return false;
}

}
int main(void)
{
char name[50];
printf("Please enter the path to the file to be checked for palindromes: ");
scanf("[^\n]", name);
isPalindrome(name);

return 0;
}

[ZuK]

Looks like you're compiling using the c compiler and your compiler doesn't support c99 ( bool is not supported earlier ). if so, use int instead.
if your c compiler does supports c99 you should
#include <stdbool.h>
You could also use the c++ compiler to compile your code.

btw you have to
#include <stdlib.h>
as well ( for malloc ).
Kurt