473,900 Members | 3,343 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Implementation of functions in math.h on clc-wiki

I'm writing a portable implementation of the C standard library for
http://www.clc-wiki.net and I was wondering if someone could check the
functions in math.h for sanity/portability/whatever. I'm almost halfway
through writing the over 200 functions needed to implement C99's
version of math.h, and I would like to have some feedback and/or expert
advice on my implementations .

Sincerely, Gregory Pietsch

Mar 11 '06
110 8666
On 2006-03-20, Netocrat <ne******@dodo. com.au> wrote:
[some snippage restored]
On Tue, 14 Mar 2006 01:31:53 +0200, Juuso Hukkanen wrote:
On 12 Mar 2006 05:44:28 GMT, Jordan Abel <ra*******@gmai l.com> wrote:
On 2006-03-11, Gregory Pietsch <GK**@flash.net > wrote:
I'm writing a portable implementation of the C standard library for

I would like to help with this, I have ideas on implementing stdio, and
Great, fresh ideas are welcome.
I also think that these files should be moved into a "pseudo-namespace"
[see http://clc-wiki.net/wiki/Clc_libc/stdio]


I've described a different approach here:
<http://clc-wiki.net/wiki/Talk:Clc_libc>. This includes a few reference
pages.


I think namespaces are still a worthwhile approach, especially if we
ever decide to post code that isn't part of a libc implementation [I
mentioned libclc in my other reply]

A hierarchial namespace is discouraged on wikipedia for a reason, but i
tihnk that reason maybe doesn't fit well here.

How about we [i guess by 'we' i mean 'you'] set it up like the
following?

Standard_Librar y/string.h [place to put explanations of constants and macros,
and the header file code itself]
Standard_Librar y/string.h/strcpy

[the current strcpy article moved to Standard_Librar y/string.h/strcpy
and so on]
Mar 20 '06 #111

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

1
2088
by: Robert Mark Bram | last post by:
Howdy All! I am trying to write a very brief comparison of the Date and Math objects in terms of instance v static objects. What I have below is my best so far. Any criticisms or suggestions are most welcome! Date is an instance object. You use Date by creating instances of it - you call methods on those instances. - you change data to do with each instance.
9
4670
by: Anon Email | last post by:
Hi people, I'm learning about header files in C++. The following is code from Bartosz Milewski: // Code const int maxStack = 16; class IStack
17
3639
by: cwdjrxyz | last post by:
Javascript has a very small math function list. However there is no reason that this list can not be extended greatly. Speed is not an issue, unless you nest complicated calculations several levels deep. In that case you need much more ram than a PC has to store functions calculated in loops so that you do not have to recalculate every time you cycle through the nest of loops. Using a HD for storage to extend ram is much too slow for many...
6
2147
by: sathyashrayan | last post by:
Following are the selected thread from the date:30-jan-2005 to 31-jan-2005. I did not use any name because of the subject is important. You can get the original thread by typing the subject "string" in google comp.lang.c archives.Hope this helps.Hope I am not bothering any one. am I? =================================Start=========================== subject: Return to Start of Line? Question: I'd like printf, the next printf, to return...
6
4485
by: Thomas Lumley | last post by:
What does the standard guarantee about the accuracy of eg the trigonometric functions? There is obviously an implementation-dependent upper bound on the accuracy, since the answer is stored in a double, but is this bound actually achieved? First, a simple example Suppose I want the arc cosine of -1, and use acos(-1.0) to compute it. The correct answer to 25 hexadecimal digits is -3.243F6A8885A308D313198A2E. This falls between two ...
8
2926
by: Sensei | last post by:
I have a quick question about the math library included in the standard C90 (and 99). The gcc, xlc and possibly other compilers/linkers on some unix platforms cannot use any math functions in math.h if a switch (-lm) is used, so *explicitly* having the linker use a file called libm.so or libm.a/dylib/whatever. Is it true on all the platforms? (answer: probably no)
5
2261
by: Ark | last post by:
Hi everyone, Does anyone know if Direct3D overloads System.Math functions? Also is it possible to access the base functions of the overloaded function (in other words restore original of the overlaoded function)? Thank you
1
2066
by: silellak | last post by:
I have found an odd error when using an XSL stylesheet transform. We have a Notes/Domino application with the following line of code in one of the stylesheets: <xsl:value-of select="format-number(number(ActEmpMoneyValue),'###,###0.00')" /> After transforming an XML document object with this stylesheet, the value in the XML node ActEmpMoneyValue is not calculated, but a flat value such as "19.31". After being processed as above on...
35
2365
by: Francine.Neary | last post by:
I'm finding it really hard to keep some of these things straight... For example, fputs is to puts as fprintf is to printf, except that fputs has the file handle at the end and fprintf at the beginning! Very illogical! And hard to remember. Now this can quite easily be corrected by macros, for example: #include <stdio.h> #define fputs(X,Y) fputs(Y,X)
17
2487
by: Jason Doucette | last post by:
I am converting a C-style unit into a C++ class. I have an implementation function that was defined in the .cpp file (so it was hidden from the interface that exists in the .h file). It uses a structure that is only needed by the implementation, so it were declared in the .cpp file, as well. Now, when converting this into a class, the class definition exists in the .h file, since it's required by the interface. The implementation...
0
9997
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...
0
9845
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
11276
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. Here is my compilation command: g++-12 -std=c++20 -Wnarrowing bit_field.cpp Here is the code in...
0
10866
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
1
10976
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
10497
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
1
8043
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
0
7204
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
2
4301
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.