I want exsmple for each preprocessor...

Question

Preprocessor Directives c

The C preprocessor uses the # directives to make substitutions in program source code before compilation. For example, the line #include <stdio.h> is replaced by the contents of the stdio.h header file before a program is compiled.

Preprocessor directives and their uses:

#include Including header files.

#define, #undef Defining and undefining macros.

#ifdef, #ifndef, #if, #else, #elif, #endif Conditional compilation.

#pragma Implementation and compiler specific.

#error, #warning Output an error or warning message An error halts compilation.

Answer 1

statements starting with # are preprocessor directives
To include a header file we use
#include<header.h>
It won't work without #, it is a part of the statement

Answer 2

I'm sorry, but you'll need to search by yourself on internet, because that's too much to type here. 😑

Answer 3

int[] items;
// initialization
forEach(int i in item) {
cout << i
}

Answer 4

What does mean "preprocessor"?

Answer 5

i can't understand..

Answer 6

okie.... sure..tanq...