Use sprintf() to combine three items into a string - C String

C examples for String:String Function

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Description

Use sprintf() to combine three items into a string

Demo Code

#include <stdio.h>

#define MAX 20/*from w  ww. j  a v  a 2 s .com*/
char * s_gets(char * st, int n);

int main(void){
    char first[MAX];
    char last[MAX];
    char formal[2 * MAX + 10];
    double prize;
    
    puts("Enter your first name:");
    s_gets(first, MAX);
    puts("Enter your last name:");
    s_gets(last, MAX);
    puts("Enter your prize money:");
    scanf("%lf", &prize);
    sprintf(formal, "%s, %-19s: $%6.2f\n", last, first, prize);
    puts(formal);
    
    return 0;
}

char * s_gets(char * st, int n){
    char * ret_val;
    int i = 0;
    
    ret_val = fgets(st, n, stdin);
    if (ret_val)
    {
        while (st[i] != '\n' && st[i] != '\0')
            i++;
        if (st[i] == '\n')
            st[i] = '\0';
        else // must have words[i] == '\0'
            while (getchar() != '\n')
                continue;
    }
    return ret_val;
}

Result


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