C Archives - Page 19 of 22

The printf function takes an argument type, such as %d or %i for a signed int. However, I don’t see anything for a ...

This was an interview question asked by a senior manager. Which is faster? while(1) { // Some code } or while(2) { //Some ...

We are all taught that you MUST free every pointer that is allocated. I’m a bit curious, though, about the real cost of ...

The question was about plain c functions, not c++ static methods, as clarified in comments. I understand what a static variable is, but ...

Why does printf not flush after the call unless a newline is in the format string? Is this POSIX behavior? How might I ...

Which one is better to use among the below statements in C? static const int var = 5; or #define var 5 or ...

What is wrong with using feof() to control a read loop? For example: #include <stdio.h> #include <stdlib.h> int main(int argc, char **argv) { ...

Is there a function to generate a random int number in C? Or will I have to use a third party library? 3Best ...

What does the ENT mean in ENOENT? Shouldn’t the error: No such file or directory just be named by ENOFILE? Is there any ...

How would you divide a number by 3 without using *, /, +, -, %, operators? The number may be signed or unsigned. ...