CODEWITHSUNDEEP
c
Ubarjohade
Ubarjohade

Reputation: 471

Console disappearing instantly

I'm new to using C in visual studio. I have this code and I can't figure out why it's acting the way it is. I put the getchar() to stop the console window from disappearing. It still disappears though unless I have the second getchar(). Why does it do this and why does a second stop it?

#define _CRT_SECURE_NO_WARNINGS

#include <stdio.h>

int main(){
    int nums[10];
    int number;
    int i = 0;

    printf("Enter a number: ");
    scanf("%i", &number);

    printf("%i", number);

    srand((unsigned)time(NULL));
    for (i; i < 10; i++){
        nums[i] = rand() % 50;
        printf("nums[%d] = %d\n", i, *(nums + i));
    }

    getchar();
    getchar();

    return 0;
}

Upvotes: 0

Views: 56

Answers (1)

MikeCAT
MikeCAT

Reputation: 75062

The first getchar() should read '\n' which is not read by scanf, so it will return immediately.

The second getchar() doesn't have anything to read, so it will wait for input.

Upvotes: 1

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