Read data from console and fill to a structure - C Structure

C examples for Structure:Structure Value

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Description

Read data from console and fill to a structure

Demo Code

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

char * s_gets(char * st, int n);
#define MAXTITL  41      /* maximum length of title + 1         */
#define MAXAUTL  31      /* maximum length of author's name + 1 */

struct book {            /* structure template: tag is book     */
    char title[MAXTITL];
    char author[MAXAUTL];
    float value;//  ww w .  ja v  a  2s.c o  m
};                       /* end of structure template           */

int main(void){
    struct book my; /* declare my as a book variable  */
    
    printf("book title:\n");
    s_gets(my.title, MAXTITL); /* access to the title portion         */
    printf("author:\n");
    s_gets(my.author, MAXAUTL);
    printf("Now enter the value.\n");
    scanf("%f", &my.value);
    printf("%s by %s: $%.2f\n",my.title, my.author, my.value);
    printf("%s: \"%s\" ($%.2f)\n", my.author, my.title, my.value);
    printf("Done.\n");
    
    return 0;
}

char * s_gets(char * st, int n){
    char * ret_val;
    char * find;
    
    ret_val = fgets(st, n, stdin);
    if (ret_val){
        find = strchr(st, '\n');   // look for newline
        if (find)                  // if the address is not NULL,
            *find = '\0';          // place a null character there
        else
            while (getchar() != '\n')
                continue;          // dispose of rest of line
    }
    return ret_val;
}

Result


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