question: typedef's do they belong in header file or in .c files ?

jason

Hello,

I have a question regarding type definitions. I usually put them in
header files. But I recently came over several discussions on the www.
And now I'm not to sure anymore if they go in .c file or in the header
files ?

What would be the correct way ?

Thank you.

Jas.

Nov 14 '07 #1

Subscribe Post Reply

7308

Dave Hansen

On Nov 13, 6:59 pm, jason <ji...@notmal.comwrote:

Hello,

I have a question regarding type definitions. I usually put them in
header files. But I recently came over several discussions on the www.
And now I'm not to sure anymore if they go in .c file or in the header
files ?

What would be the correct way ?

Header files are for sharing. If you need visibility of the typedef
across two or more source modules, put it in a header file. If the
typedef is used in only one source module, put it there.

Regards,

-=Dave

Nov 14 '07 #2

cr88192

"jason" <ji***@notmal.comwrote in message
news:47**********************@dreader23.news.xs4al l.nl...

Hello,

I have a question regarding type definitions. I usually put them in
header files. But I recently came over several discussions on the www.
And now I'm not to sure anymore if they go in .c file or in the header
files ?

What would be the correct way ?

Thank you.

IMO, headerers are better.

this is also especially true in my case since I tend to use tools to
autogenerate the headers (function prototypes and so on), and so, not having
types in headers can make a very big mess with said autogenerated
prototypes...

Jas.

Nov 14 '07 #3

Similar topics

typedef and declaration of function

by: Vu Pham | last post by:

I think this problem relates to either c or c++ ( but I am not sure which one ) so I post to both of these news group. I am sorry if I did something wrong here. Is there any difference between...

C / C++

struct question

by: Morenz | last post by:

Hi all, I've got a problem with a struct, well i want to declare struct in main program ( in .c file ) and then use it in a librarie included file( .h file ), is it possible? Thank in advance...

C / C++

One struct pointer question

by: QQ | last post by:

Here is my program the head is typedef struct struct_CN { unsigned char magicA; unsigned char magicB; unsigned short msgLen; } CN;

C / C++

struct and typedef problems

by: burn | last post by:

Hello, i am writing a program under linux in c and compile my code with make and gcc. Now i have 4 files: init.c/h and packets.c/h. Each header-file contains some: init.h: struct xyz {

C / C++

C# eq of C++ typedef

by: Dennis Myrén | last post by:

Hi. Is there any way to define an alias for a type like you could in C++: typedef int NUMBER; I tried using #define but that did not work. Thank you. -- Regards,

C# / C Sharp

Question about a splint diagnostic

by: spibou | last post by:

I have two identical files , u1.c and u2.c which only contain the line typedef int Q ; When I issue "splint u1.c u2.c" I get u2.c:1:13: Datatype Q defined more than once A function or variable...

C / C++

typedef header file error C++ vs C

by: toonces | last post by:

I am doing cross compiling between C++ and C compiler for header files and desperately need help on figuring out namespace issue error generated by C++ compiler. Here are two header files:abc1.h,...

C / C++

Pass by Reference Function Question

by: Bryan Parkoff | last post by:

I write my large project in C++ source code. My C++ source code contains approximate four thousand small functions. Most of them are inline. I define variables and functions in the global scope....

C / C++

the question is about file streams.

by: zeeshan708 | last post by:

I am quoting this from Deitel's 5th edition on C++ Now the question is... Why is there a separate specialization for char data type ??? Is it because the files normally are made up of...

C / C++

React to native button blinking effect

by: lllomh | last post by:

Define the method first this.state = { buttonBackgroundColor: 'green', isBlinking: false, // A new status is added to identify whether the button is blinking or not } autoStart=()=>{

Software Development

How to find best mobile app development company in usa

by: Aliciasmith | last post by:

In an age dominated by smartphones, having a mobile app for your business is no longer an option; it's a necessity. Whether you're a startup or an established enterprise, finding the right mobile app...

Mobile Development

Energy Model code modification to account for year dependent interest rate

by: giovanniandrean | last post by:

The energy model is structured as follows and uses excel sheets to give input data: 1-Utility.py contains all the functions needed to calculate the variables and other minor things (mentions...

Python

Send Current Object to PDF

by: NeoPa | last post by:

Hello everyone. I find myself stuck trying to find the VBA way to get Access to create a PDF of the currently-selected (and open) object (Form or Report). I know it can be done by selecting :...

Microsoft Access / VBA

VBA Class Basics

by: NeoPa | last post by:

Introduction For this article I'll be using a very simple database which has Form (clsForm) & Report (clsReport) classes that simply handle making the calling Form invisible until the Form, or all...

Microsoft Access / VBA

Finding a record, and then saving a new record after the record has been amended.

by: nia12 | last post by:

Hi there, I am very new to Access so apologies if any of this is obvious/not clear. I am creating a data collection tool for health care employees to complete. It consists of a number of...

Microsoft Access / VBA

VBA Class Basics (Report Class)

by: NeoPa | last post by:

Introduction For this article I'll be focusing on the Report (clsReport) class. This simply handles making the calling Form invisible until all of the Reports opened by it have been closed, when it...

Microsoft Access / VBA

Access Europe Meeting - Wed 6 Dec - Streamline Your Import/Export Spec Workflow with VBA Classes

by: isladogs | last post by:

The next online meeting of the Access Europe User Group will be on Wednesday 6 Dec 2023 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). In this month's session, Mike...

Microsoft Access / VBA

Applying ComboBox filters Sequentially

by: SueHopson | last post by:

Hi All, I'm trying to create a single code (run off a button that calls the Private Sub) for our parts list report that will allow the user to filter by either/both PartVendor and PartType. On...

Microsoft Access / VBA