Thread: Matching 2 string Problem

test[0].programme is assigned with "Hello World". Then I input "Hello World" into key.programme to compare it with test[0].programme but it just never work even it' already same. How can i solve it? TY

Code:

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

struct record{
	char programme[BUFSIZ];
};

typedef struct record record;

int main(){

	record key;
    record test[1];

    strcpy(test[0].programme, "Hello World\n"); 
    printf("Input received from test[0].programme: %s\n", test[0].programme);

    printf("Programme: ");
    fgets(key.programme, sizeof(key.programme),stdin);
	printf("\nInput received from key: %s", key.programme);

	if(key.programme == test[0].programme){ //compared but wont work
        printf("Working. Match found\n");
	}else{
        printf("Nope. Something went wrong\n");
	}
}

replace line 23 with if(strcmp(key.programme,test[0].programme)==0) you have to use string compare from string.h library

Thanks!. Just wondering why I cant use if(key.programme == test[0].programme)? Srry if i annoy u.

I'm assuming your familiar with arrays. If not, I suggest you read a bit about it.

To use strings in C, we use an array of characters.

Say you declare
char carray[10];

Now, the variable "carray" represents the starting address of the array(which in this case is a string).

Code:

if(key.programme == test[0].programme)

When you use this piece of code you're comparing the starting addresses of the two strings and not the strings themselves.

If you wish to compare two strings in C you need to use the strcmp() function(look it up).

ok thanks