Top "C" questions

What is the difference between float and double?

I've read about the difference between double precision and single precision. However, in most cases, float and double seem to …

c++ c floating-point precision

How to convert a string to integer in C?

I am trying to find out if there is an alternative way of converting string to integer in C. I …

c string atoi

How to convert integer to string in C?

I tried this example: /* itoa example */ #include <stdio.h> #include <stdlib.h> int main () { int i; …

c string integer type-conversion

max value of integer

In C, the integer (for 32 bit machine) is 32 bits, and it ranges from -32,768 to +32,767. In Java, the integer(long) …

java c integer max bit

How can I get the list of files in a directory using C or C++?

How can I determine the list of files in a directory from inside my C or C++ code? I'm not …

c++ c file directory

What does "static" mean in C?

I've seen the word static used in different places in C code; is this like a static function/class in …

c syntax static

C read file line by line

I wrote this function to read a line from a file: const char *readLine(FILE *file) { if (file == NULL) { printf("…

c file-io line libc

Is there a printf converter to print in binary format?

I can print with printf as a hex or octal number. Is there a format tag to print as binary, …

c printf

What is the effect of extern "C" in C++?

What exactly does putting extern "C" into C++ code do? For example: extern "C" { void foo(); }

c++ c linkage name-mangling extern-c

How to initialize a struct in accordance with C programming language standards

I want to initialize a struct element, split in declaration and initialization. This is what I have: typedef struct MY_…

c struct initialization