Mongo C Driver: Loosing decimal digits in QT application

Christoph-LaBP

When creating a bson from a json string with mongo c driver, decimal digits get lost when running in a QT environment in release mode.

Whole issue, including a minimal example is described here: https://jira.mongodb.org/browse/CDRIVER-3626

Unfortunately I did not get help so far, so I'm asking here, if anyone has an idea, what QApplication could change to produce the issue. Thanks a lot!

aha_1980

Hi @Christoph-LaBP,

try this following snippet after creating the Q(Core)Application (you need to #include <locale.h>):

const char *result = setlocale(LC_NUMERIC, "C");
if (!result)
    fprintf(stderr, "Warning: cannot change LC_NUMERIC to 'C'!");

This helped me in Linux to let printf output numeric dots instead commas. It looks like your issue is related.

Regards

Christoph-LaBP

YES :) Thank you very much! This fixed the issue!

aha_1980

@Christoph-LaBP

Super! Then please mark this topic as SOLVED (with the button Topic Tools).

Thanks!