Question

How to allocate memory for a string in C

Answer 1

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

int main(int argc, char **argv) 
{ 
    char *s;
    
    s = (char *)malloc(sizeof(char) * 128);
    if(s == NULL)
    {
        puts("Allocation Error");
        exit(1);
    }
    printf("Type a string up to 127 characters: ");
    fgets(s, 127, stdin);
    puts("Your string is: ");
    printf("%s", s);
    free(s);
        
    return 0;
}

/*
run:

Type a string up to 127 characters: and then you will get it
Your string is:
and then you will get it

*/

 

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Answer 2

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
 
int main(void) {
    char *s = (char*) malloc(15 * sizeof(char));
    strcpy(s, "c programming");
 
    puts(s);
     
    free(s);
  
    return 0;
}
  
  
  
  
/*
run:
    
c programming
    
*/

 

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