Thread: My program is skipping my second getchar() input statement.

Hi, I'm new to input and output in C. The following code has two input statements:

Code:

#include<stdio.h>
#include<stdlib.h>
//SamsFirst_IO.c

int main(){
    int x,y;
    printf("Type a letter: ");
    x = getchar();
    printf("Type another letter: ");
    y = getchar();
    //printf("You typed '%c'.\n",c);
    putchar('\n');
    printf("You typed ");
    putchar(x);
    printf(" and ");
    putchar(y);
    printf(".\n");
    
    return(0);
}

But the console ignores my second input statement and looks like this:

What's going on?

Originally Posted by UncleBazerko

Hi, I'm new to input and output in C.
...
What's going on?

When you type in 'x' and press enter, you are actually entering 2 characters. The first getchar() assigns 'x' to the variable, x. The Second getchar() then assigns the newline char to the variable y.

You need to clean out the input buffer after the first getchar(). It is commonly done with the following statements:

Code:

int ch = 0;
while ((ch = getchar()) != '\n' && ch != EOF);

DO NOT try to use, "fflush(stdin)"!!! fflush() is for output files ONLY!!!