cscanf

Why does scanf take two inputs when running this code?

When using the scanf function to take an input, two inputs are given.

For starters, I am a python programmer trying to learn C. I tried to search why this was happening but found nothing. Here is the code:

#include <stdio.h>

int main() {

    int age;

    printf("Enter your age: ");
    scanf("%d\n", &age);
    printf("Your age is %d\n", age);
    
    return 0;
}

When running and debugging in VSCode, this is what I get:

Enter your age: 23
12
Your age is 23

Any help would be appreciated.

Solution

  • The \n is unnecessary in the scanf format string. It tells scanf to continue reading any number of whitespace characters, until it finds the next non-whitespace character.

    Instead, just use scanf("%d", &age);