Use preprocessor to define integer and string : define « Preprocessor « C Tutorial

Home
C Tutorial
1.Language
2.Data Type
3.String
4.printf scanf
5.Operator
6.Statement
7.Array
8.Function
9.Structure
10.Pointer
11.Memory
12.Preprocessor
13.File
14.Data Structure
15.Search Sort
16.Wide Character String
17.assert.h
18.ctype.h
19.math.h
20.setjmp.h
21.signal.h
22.stdio.h
23.stdlib.h
24.string.h
25.time.h
26.wctype.h
C / ANSI-C
C++
C++ Tutorial
Visual C++ .NET
C Tutorial » Preprocessor » define 
12.2.1.Use preprocessor to define integer and string
#include <stdio.h>

#define VAL 35
#define HELLO "HELLO"

main ()
{
    int res;

    res = VAL-5;
    printf ("res = VAL-5: res == %d\n", res);
    printf ("%s",HELLO);
}
res = VAL-5: res == 30
      HELLO
12.2.define
12.2.1.Use preprocessor to define integer and string
12.2.2.Use #define to define constant
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.