GeeksforGeeks » C/C++ Programming Questions

system programming (can anyone explain the output)

(2 posts)
  • Started 4 months ago by himanshuarora
  • Latest reply from kartik

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  1. himanshuarora
    Member
    Posted 4 months ago # 

    #include <stdio.h>
#include <ctype.h>

void fn(int x, int y);

int main(void)
{
    int a = 4;
    int b = -4;

    printf("[%s, %s, %c]\n", "\12" "3", "\123", "\123");

    printf("[a: %d, b: %d]\n", a>>-1, b>>1);

    printf("Mod variants: 5,3 [Q: %2d, R: %2d]\n", 5/3, 5%3);
    printf("Mod variants: -5,3 [Q: %2d, R: %2d]\n", -5/3, -5%3);
    printf("Mod variants: 5,-3 [Q: %2d, R: %2d]\n", 5/-3, 5%-3);
    printf("Mod variants: -5,-3 [Q: %2d, R: %2d]\n", -5/-3, -5%-3);

    fn(a,a++);

    printf("[islower(’$’): %d], [islower(’a’): %d]\n",
           islower(’$’), islower(’a’));

    return 0;
}

void fn(int x, int y)
{
    printf("[x: %d], [y: %d]\n", x, y);
}

  2. kartik
    Moderator
    Posted 4 months ago #

    See section 7.5 of "C traps and pitfalls"

    http://www.csd.uwo.ca/~moreno/cs2211_moreno/ctraps-AKoenig.pdf


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