strod() and sprintf() inconsistency under GCC and MSVC

Posted by Dmitry Sapelnikov on Stack Overflow See other posts from Stack Overflow or by Dmitry Sapelnikov
Published on 2010-03-23T11:10:43Z Indexed on 2010/03/23 11:13 UTC
Read the original article Hit count: 355

Filed under:

string

|

double

|

conversion

|

gcc

|

msvc

I'm working on a cross-platform app for Windows and Mac OS X, and I have a problem with two standard C library functions: strtod() (string-to-double conversion) ? sprintf (when used for outputting double-precision floating point numbers) -- their GCC and MSVC versions return different results.

I'm looking for a well-tested cross-platform open-source implementation of those functions, or just for a pair of functions that would correctly and consistently convert double to string and back.

I've already tried the clib GCC implementation, but the code is too long and too dependent on other source files, so I expect the adaptation to be difficult.

What implementations of string-to-double and double-to-string functions would you recommend?

© Stack Overflow or respective owner

Related posts about string

Read array dump output and generates the correspondent XML file

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, The text below is the dump of a multidimensional array, dumped by the var_dump() PHP function. I need a Java function that reads a file with a content like this (attached) and returns it in XML. For a reference, in site http://pear.php.net/package/Var_Dump/ you can find the code (in PHP) that… >>> More
Formatting a date string when the string sits inside another string

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I'm trying to figure out a way to format a date string that sits inside string using javascript. The string can be: "hello there From 2010-03-04 00:00:00.0 to 2010-03-31 00:00:00.0" or "stuff like 2010-03-04 20:00:00.0 and 2010-03-31 00:00:02.0 blah blah" I'd like it to end up like: "stuff… >>> More
Using String+string+string vs using string.replace

as seen on Stack Overflow - Search for 'Stack Overflow'
A colleague told me that using the following method: string url = "SomeURL"; string ext = "SomeExt"; string sub = "SomeSub"; string subSub = "moreSub"; string Url = @"http://www." + Url +@"/"+ ext +@"/"+ sub + subSub; is not efficenet (takes more resources) and it is preferred to use the… >>> More
vb.net string concatenation string + function output + string = string + function output and no more

as seen on Stack Overflow - Search for 'Stack Overflow'
The following output produces a string with no closing xml tag. m_rFlight.Layout = m_rFlight.Layout + "<G3Grid:Spots>" + Me.gvwSpots.LayoutToString() + "</G3Grid:Spots>" This following code works correctly m_rFlight.Layout = m_rFlight.Layout + "<G3Grid:Spots>" + Me.gvwSpots.LayoutToString() m_rFlight… >>> More
Trying to convert simple midlet application to Android application but running into problems.

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi I am trying to do some threading in Android so I took an old threading assignment I had done fora midlet and took out the midlet code and replaced it with android code(such as textview). package com.assignment1; import android.app.Activity; import android.os.Bundle; import android.widget.TextView; public… >>> More

Related posts about double

Using delegates in C# (Part 2)

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
Part 1 of this post can be read here. We are now about to see the different syntaxes for invoking a delegate and some c# syntactic sugar which allows you to code faster. We have the following console application. 1: public delegate double Operation(double x, double y); 2: 3: public… >>> More
How to rotate a set of points on z = 0 plane in 3-D, preserving pairwise distances?

as seen on Game Development - Search for 'Game Development'
I have a set of points double n[] on the plane z = 0. And I have another set of points double[] m on the plane ax + by + cz + d = 0. Length of n is equal to length of m. Also, euclidean distance between n[i] and n[j] is equal to euclidean distance between m[i] and m[j]. I want to rotate n[] in 3-D… >>> More
dividing double by double gives weird results - Java

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I am trying to do the following 33.33333333333333/100.0 to get 0.333333333333333 however when I run System.out.println(33.33333333333333/100.0); I get 0.33333333333333326 as the output, similarly when I run System.out.println(33.33333333333333/1000.0); I get 0.033333333333333326 as the output… >>> More
C# (4): double minus double giving precision problems

as seen on Stack Overflow - Search for 'Stack Overflow'
I have come across a precision issue with double in .NET I thought this only applied to floats but now I see that double is a float. double test = 278.97 - 90.46; Debug.WriteLine(test) //188.51000000000005 //correct answer is 188.51 What is the correct way to handle this? Round? Lop off the unneeded… >>> More
Is there a Math.atan2 substitute for j2ME? Blackberry development

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a wide variety of locations stored in my persistent object that contain latitudes and longitudes in double(43.7389, 7.42577) format. I need to be able to grab the user's latitude and longitude and select all items within, say 1 mile. Walking distance. I have done this in PHP so I snagged my… >>> More