Question

How to open and write to a text file in C

Answer 1

#include <stdio.h>   
#include <stdlib.h>  
 
int main(void)
{
    int flag = EXIT_SUCCESS;

    char *path = "d:\\data.txt";

    FILE *fp = fopen(path, "w");
    
    if (!fp) 
    {
        perror(path);
        return EXIT_FAILURE;
    }

    if (fputs("c c++\nc# java", fp) == EOF)
    {
        perror(path);
        flag = EXIT_FAILURE;
    }

    if (fclose(fp)) 
    {
        perror(path);
        return EXIT_FAILURE;
    }
    
    return flag;
}
    
/*
run:
 
data.txt
--------
c c++
c# java
  
*/

 

70+ SQL courses for beginners and professionals