strtod returns 0 after constructing a QApplication in Qt4.6.2 on MacOSX 10.5.8

Subject: strtod breaks down in Qt4.6.2

Dear Madam, Sir,

After constructing a QApplication object, the <stdlib.h> function "strtod" no longer returns correct values.

I have narrowed down the problem to the following piece of code:

#include <cstdlib>
#include <QApplication>
#include <iostream>
using namespace std;
int main(int argc, char *argv[]) {

	cerr << "strtod(0.1) = " << strtod("0.1",0) << endl;
	QApplication app(argc,argv);
	cerr << "strtod(0.1) = " << strtod("0.1",0) << endl;

}

This code produces:

Laptop-van-Roeland-Merks-2:QtStrtoD roel$ ./QtStrtoD
strtod(0.1) = 0.1
strtod(0.1) = 0

After constructing the qApp, strtod always seems to return 0.

I have only seen the problems on MacOSX with Qt4.6.2; we have compiled the same code on Windows and Linux, but I am unsure of the Qt versions right now (I can check it in detail tomorrow morning if needed). The problem is new - I have never seen it before on MacOSX (previous version of Qt / previous patch of MacOSX?)

Hope this is helpful. I look forward to hearing from you.

Best wishes,
Roeland Merks