C program to read and store strings

Question

I\'m writing a piece of code in C that iterates T times and each time takes as input the text of a little song on which it will perform some counting operation (counting the len

Answer 1

There's a \n left in the input buffer. One solution is:

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

#define MAX_SONG_SIZE 501

int main(void){
    int t;
    scanf("%d", &t);
    getchar();

    char song[MAX_SONG_SIZE];
    while(t--){
        fgets(song, MAX_SONG_SIZE * sizeof(char), stdin);
        printf("foo\n");
    }
    return 0;
}

See also: How to clear input buffer in C?

Answer 2

There's a \n left in the input buffer, see http://c-faq.com/stdio/scanfinterlace.html

A quote from the link:

As a general rule, you shouldn't try to interlace calls to scanf with calls to gets() (or any other input routines); scanf's peculiar treatment of newlines almost always leads to trouble. Either use scanf to read everything or nothing.