Question

I am writing some code in C:

int main(){
    char guess[15];
    guess = helloValidation(*guess);
    return 0;
}

And my function is:

char[] helloValidation(char* des) {
    do {
        printf("Type 'hello' : ");
        scanf("%s", &des);
    }while (strcmp(des, "hello") != 0);
        return des
}

But it is giving me this error:

incompatible types in assignment 

Answer 1

The guess array is modified by the function itself. You are then trying to reassign the array pointer guess, resulting in an error. Not to mention incorrectly trying to reference *guess or using &des incorrectly. I suggest you read up on C pointer/array concepts.

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

char* helloValidation(char* des) {
    do {
        printf("Type 'hello' : ");
        scanf("%s", des);
    } while (strcmp(des, "hello") != 0);
    return des;
}

int main() {
    char guess[15];
    helloValidation(guess);
    return 0;
}