File type Macros in sys/stat.h

[Concrete Geist]

Whenever I use one of these it tells me Invalid operand to binary &

How am I supposed to use these??

S_ISREG(m)
S_ISDIR(m)
S_ISCHR(m)
S_ISBLK(m)
S_ISFIFO(m)
S_ISLNK(m)
S_ISSOCK(m)

[Concrete Geist]

bump

[debiandude]

Um I don't know what you were trying to do by getting that error. The only thing I could that maybe you were trying to do was pass it a file pointer. You can't directly do that, you have to first fstat the file after you did open on it. Anyway here is a brief example:

int main(void) {

#include <stdio.h>
#include <sys/stat.h>

int main(void) {

struct stat *buf;

stat("/home/michael/test.c", buf);

if(S_ISREG(buf->st_mode)) {
printf("It's a reg one man.\n");
}

return 0;

}