C #pragma

The #pragma preprocessor directive is used to provide additional information to the compiler. The #pragma directive is used by the compiler to offer machine or operating-system feature.

Syntax:

Different compilers can provide different usage of #pragma directive.

The turbo C++ compiler supports following #pragma directives.

#pragma argsused
#pragma exit
#pragma hdrfile
#pragma hdrstop
#pragma inline
#pragma option
#pragma saveregs
#pragma startup
#pragma warn

Let's see a simple example to use #pragma preprocessor directive.

#include<stdio.h>
#include<conio.h>

void func() ;

#pragma startup func
#pragma exit func

void main(){
printf("\nI am in main");
getch();
}

void func(){
printf("\nI am in func");
getch();
}

Output:

I am in func
I am in main
I am in func

Next TopicCommand Line Arguments in C

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