字符计数程序不输出任何内容

Question

I've tried Dev-C++ and MinGW(32-bit) but every time i run the code, nothing outputs. I'm using windows 7. below is my code.

#include<stdio.h>
main()
{
  long nc;
  nc=0;
  while(getchar()!=EOF)
    ++nc;
  printf("Number of chars are %ld ",nc);
}

I've also tried pressing Ctrl-D to signal the EOF but it's not working. when I input " rajkumar " and [enter] it doesn't do anything. when i input " rajkumar " and ^Z [enter] twice, it ends. all i'm asking is why it doesn't print the expected output? and when i tried it first time it worked fine twice, but then i don't know what went wrong.

Answer 1

Based on this answer , to trigger EOF detection,

• first do ENTER
• then press control Z (or ^D on Linux), that has to be at the beginning of the line
• press ENTER again if detection was still not triggered

Answer 2

To signal EOF on Windows, press Ctrl-Z followed by Enter.

Note: this is for the Windows console. If you're running the program inside your IDE, your IDE may or may not have a way to signal EOF.

Answer 3

getchar() gets a single character and it also accepts Enter. So if you press r and then Enter, its only r that gets entered. So you need to press Enter after pressing the keys. Without Enter, getchar() won't accept the character.

Answer 4

Try putting a \\n at the end of your printf. Something like: printf("Number of chars are %ld /n",nc);