unix - How to use fgets() instead of fscanf() on stdin in C? -

i want use fgets instead of fscanf stdin , send child process via pipe. code below works sorting lines in file replacing

fscanf(stdin, "%s", word) 

with

fgets(word, 5000, stdin) 

gives me warning

warning: comparison between pointer , integer [enabled default] 

otherwise program seems work. ideas why getting warning?

int main(int argc, char *argv[]) {   pid_t sortpid;   int status;   file *writetochild;   char word[5000];   int count = 1;    int sortfds[2];   pipe(sortfds);    switch (sortpid = fork()) {     case 0: //this child process       close(sortfds[1]); //close write end of pipe       dup(sortfds[0]);       close(sortfds[0]);       execl("/usr/bin/sort", "sort", (char *) 0);       perror("execl of sort failed");       exit(exit_failure);     case -1: //failure fork case       perror("could not create child");       exit(exit_failure);     default: //this parent process       close(sortfds[0]); //close read end of pipe       writetochild = fdopen(sortfds[1], "w");       break;   }    if (writetochild != 0) { //do if parent     while (fscanf(stdin, "%s", word) != eof) {       fprintf(writetochild, "%s %d\n",  word, count);     }      }      fclose(writetochild);    wait(&status);    return 0; } 

fscanf returns int, fgets char *. comparision eof results in warning char * since eof int.

fgets returns null on eof or error, check that.