🚀 go-pugleaf

In <1992Aug19.212328.15304@talon.ucs.orst.edu> hilmera@ucs.orst.edu (Andrew Hilmer) writes:

>Compiler: gcc/2 2.1
>Problem: problem and question about gcc/2

...

>/*
>  This program takes the input of two numbers, one
>  integer, one floating point, and prints them back out.
>*/

>#include <stdio.h>

>main()
>{
>  int x;
>  float y;

>/*  fflush(stdin); */
>  printf("This is my first C program.\n");
>  printf("Enter an integer: ");
>  scanf("%d", &x);
>  printf("Enter a floating point number: ");
>  scanf("%f", &y);
>  printf("The value stored in x is %d\n", x);
>  printf("The value stored in y is %f\n", y);
>}

...

>When run, it prints nothing but a line or two and a blinking cursor.
>As a shot in the dark, I entered 3, hit enter (got another big
>nothing), then entered 93.9 and hit enter.

Read  the FAQ.  Nothing says when stdout will flush unless you specify it.
The program did exactly as requested. 
    printf() some stuff   --  it gets buffered to stdout
    scanf() some stuff    --  you typed 3
    printf() some more    --  stdout buffers some more
    scanf() some more     --  you typed 93.9
    exit()		-- stdout gets flushed at exit and you see the printfs()

If you want to handle the flushes yourself, just fflush(stdout)  before each
of the scanfs().  Takes full advantage of any buffering and gets you exactly
what you want.


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