Change string using function parameter

Question

Change string using function parameter

Navigation

#1 by (0 votes)

0

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void menu_principal(char* monstro1, char* monstro2){
    int escolha;
    char monstro[20];
    printf("King of Tokyo\n\n");
    printf("Jogador escolha um monstro:\n---------------------------\n");
    printf("1-Godzilla\n2-Feto Gigante Zumbi Nazista\n3-Pac-Man\n4-Blanca\n5-Penha\n6-Nemesis\n\n0-SAIR\n\n");
    do{
        scanf("%d", &escolha);
    }
    while(escolha<0 || escolha>6);
    if(escolha==0){
        exit(0);
    }
    printf("VOCE ESCOLHEU:");
    if(escolha==1){
        char monstro[30]="Godzilla";
        printf("%s\n\n",monstro);
    }
    else if(escolha==2){    
        char monstro[30]="Feto Gigante Zumbi Nazista";
        printf("%s\n\n",monstro);
    }
    else if(escolha==3){
        char monstro[30]="Pac-Man";
        printf("%s\n\n",monstro);
    }
    else if(escolha==4){
        char monstro[30]="Blanca";
        printf("%s\n\n",monstro);
    }
    else if(escolha==5){
        char monstro[30]="Penha";
        printf("%s\n\n",monstro);
    }
    else if(escolha==6){
        char monstro[30]="Nemesis";
        printf("%s\n\n",monstro);
    } 
    *monstro1=monstro; 
}

int main(){
    char monstromain1[30]=".";
    char monstromain2[30]="..";
    menu_principal(monstromain1,monstromain2);
    printf("%s",monstromain1);
    return 0;
}

I am not able to change the value of monstromain1 by using the function. When I run I get the error

main.c: 42: 14: warning: assignment makes integer from pointer without cast [-Wint-conversion] * monster1 = monster;

c string

asked by anonymous 12.04.2018 / 02:37

1 answer

Error inserting array of objects Hide and show according to button ID

score 0 · Accepted Answer

The code is too complicated and difficult to read, this ends up making it difficult to find the problem and it is not copying the text to the variable you want, this should occur with strcpy() . This code is not exactly safe, but for an exercise it's fine:

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

void menu_principal(char *monstro1, char* monstro2){
    printf("King of Tokyo\n\n");
    printf("Jogador escolha um monstro:\n---------------------------\n");
    printf("1-Godzilla\n2-Feto Gigante Zumbi Nazista\n3-Pac-Man\n4-Blanca\n5-Penha\n6-Nemesis\n\n0-SAIR\n\n");
    int escolha;
    do { scanf("%d", &escolha); } while (escolha < 0 || escolha > 6);
    if (escolha == 0) exit(0);
    char *monstros[] = { "", "Godzilla", "Feto Gigante Zumbi Nazista", "Pac-Man", "Blanca", "Penha", "Nemesis" };
    strcpy(monstro1, monstros[escolha]);
    printf("VOCE ESCOLHEU: %s\n\n", monstro1);
}

int main(){
    char monstromain1[30]=".";
    char monstromain2[30]="..";
    menu_principal(monstromain1, monstromain2);
    printf("%s", monstromain1);
}