Sponsored Content
Top Forums Programming Typedef does not work to name a type Post 302930923 by achenle on Thursday 8th of January 2015 02:45:35 PM
Old 01-08-2015
Quote:
Originally Posted by shamrock
@achenle:
Embedded spaces in preprocessor #defines are always a cause of confusion and error...however the issue with the OP is one of supplying a compiler statement to a preprocessor...
That was a simple off-the-cuff example to demonstrate the semantic and syntax differences between "typedef" and "#define".

The fact that whitespace is treated completely differently in typedef and #define code is another reason to never replace typedef's with #define's.

If you read the link the OP provided, you'd see his problem is compiling. He's not feeding code to a preprocessor except as part of compiling. And I'd love to see a preprocessor so lame it couldn't handle typedef's, which are part of the language spec.

"Find out what's broken and fix it" is much better than "change this and hope it works".
This User Gave Thanks to achenle For This Post:
 

9 More Discussions You Might Find Interesting

1. Solaris

Conflicting 'typedef' error - Which gcc switch to use?

I am using gcc3.3.5 on solaris2.7. Its a 64 bit compilation I am compiling a file 'plugin.cpp'. It includes mach.h and the complation gives the following error. ----------------------------------------------------------------- mach.h error: conflicting types for `typedef vx_u32_t... (0 Replies)
Discussion started by: amitc
0 Replies

2. Programming

How to typedef

I want to declare char ch as ch_9 with the help of the typedef statement. Thanks (1 Reply)
Discussion started by: krishna_sicsr
1 Replies

3. Programming

typedef struct forward declaration

I've google a bit about this and couldn't find an answer. Actually I read that it can't be done. Basically I've defined the following structure and typedef it as follows. stuct Name { }; typdef struct Name Name. and right after it, defined some API that use it. void blabla(Name*... (6 Replies)
Discussion started by: emitrax
6 Replies

4. UNIX for Dummies Questions & Answers

Any Beos versions work on AMD64-type PCs?

Preparing to get my first home PC via custom-build shop. It will have three hard disk drives...one to be used only for trial of various OSs. Was hoping to test out Haiku, but according to 'supported architectures' table at Wikipedia ("Comparison of open source operating systems"), it only works on... (3 Replies)
Discussion started by: Varsel
3 Replies

5. Programming

typedef help

Hi! This is part of my my code : typedef struct{ int x; char na; char sur; } Stu; typedef struct{ Stu *arr; int size; int sort; } Stus; I want to ask how can i free() the matrix arr. I tried free(arr), free(Stus.arr) and i get errors with gcc. My problem, in... (3 Replies)
Discussion started by: giampoul
3 Replies

6. Shell Programming and Scripting

Need Role Name for my type of work

Hi , I am planning for the interview . I am having one question here , I worked on unix and shellscripting for 2 years Done- Ø Coding and testing of Server Monitoring ShellScripts Ø Deployment on UNIX production environment I have written so many shellscripts for monitoring... (5 Replies)
Discussion started by: aish11
5 Replies

7. Programming

Compilation problem with typedef

I am getting confused compiling a program that gives me the following error ../../../tomso/algeb/vector.hpp:19:9: error: ‘Vector' does not name a type typedef Vector<float> Vecflt; (1 Reply)
Discussion started by: kristinu
1 Replies

8. Programming

Event driven programming / epoll / typedef union / session data array

Sorry for the “word salad” subject, but I wanted to cast a wide net for help. I've created an IP (Internet Protocol) server which serves HTTP, SMTP, and FTP requests. As you probably know, they all require creating a socket, listening on it, accepting connections, and then having a short... (3 Replies)
Discussion started by: John S.
3 Replies

9. Programming

Help me to understand strange 'typedef ... ' in some source...

Working on some source I've found some strange declaration in included header file. I am looking for someone's help to understand me that syntax's, as it is fine (it is compiled without any complain,) but for me it seems out of any sense! Acctually, it warning by CC compiler: " Warning: Implicit... (1 Reply)
Discussion started by: alex_5161
1 Replies
DwtScrollWindowSetAreas(3Dwt)											     DwtScrollWindowSetAreas(3Dwt)

Name
       DwtScrollWindowSetAreas - Sets up or adds the window region, and the horizontal or vertical scroll bar widgets to the scroll window widget.

Syntax
       void DwtScrollWindowSetAreas(widget, horizontal_scroll_bar,				vertical_scroll_bar, work_region)
	    Widget widget;
	    Widget horizontal_scroll_bar;
	    Widget vertical_scroll_bar;
	    Widget work_region;

Arguments
       widget	 Specifies the scroll window widget ID.

       horizontal_scroll_bar
		 Specifies  the scroll bar widget ID for the horizontal scroll bar to be associated with the scroll window widget.  You can set or
		 specify this ID only after creating an instance of the main window widget.  The attribute name associated with this  argument	is
		 DwtNhorizontalScrollBar.

       vertical_scroll_bar
		 Specifies  the  scroll  bar widget ID for the vertical scroll bar to be associated with the scroll window widget.  You can set or
		 specify this ID only after creating an instance of the main window widget.  The attribute name associated with this  argument	is
		 DwtNverticalScrollBar.

       work_region
		 Specifies  the  widget  ID for the window to be associated with the scroll window work area.  You can set or specify this ID only
		 after you create an instance of the main window widget.

Description
       The DwtScrollWindowSetAreas function adds or changes a window work region and a horizontal or vertical scroll bar widget to the scroll win-
       dow  widget  for  the  application.  You must call this function before the scroll window widget is realized, that is, before calling the X
       intrinsics function XtRealizeWidget.  Each widget is optional and may be passed as NULL.

See Also
       DwtScrollWindow(3Dwt), DwtWindow(3Dwt),
       Guide to the XUI Toolkit: C Language Binding
       Guide to the XUI Toolkit Intrinsics: C Language Binding

														     DwtScrollWindowSetAreas(3Dwt)
All times are GMT -4. The time now is 03:40 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy