terminal - C - fprintf and printf inside loops don t print to screen -

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i discovered function fprintf can used print screen.

i have minimal below, doesn t output screen. why?

#include <stdio.h>  int main(void) {     int i,j,k;      for(i=0;i<4;i++)     {         for(j=0;j<0;j++)         {             for(k=0;k<3;k++)             {                 printf("test\n");                 fprintf(stderr, "test\n");              }         }            }      return 0; }

i running ubuntu 14.04 , compiling code follows: gcc main.c -o main

why should print anything? 1 of loops has impossible condition:

    for(j=0;j<0;j++)               ^---

since j starts @ 0, can never less 0, loop exits without ever executing body.


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