Qt的呼叫在释放模式失败 [英] Qt Call fails in Release Mode

问题描述

我已经开发使用Qt，VS2013和加速的应用程序。它运行在调试模式下的罚款。但未能在释放模式下运行。这里是一片code的运行精细调试时，但在释放模式抛出异常：

I've developed an application using Qt, VS2013 and Boost. It runs fine in Debug mode. But fails to run in Release mode. Here's a piece of code that runs fine while debugging but throws an exception in release mode:

std::string str = ui.labels->toPlainText().toStdString();

而另一方面该调用正常工作：

This call on the other hand works fine:

QString str = ui.labels->toPlainText();

这有什么错code的那些行？其他提升通话正常工作。
谢谢。

Is there anything wrong with those lines of code? Other boost calls work fine. Thanks.

推荐答案

您很可能在尝试一次做太多的事情，这使得它很难确定它失败。尝试一步一步：

You're probably trying to do too many things at once, and that makes it hard to pinpoint where it fails. Try it step-by-step:

QString const text = ui.labels->toPlainText();
QByteArray const utf8 = text.toUtf8();
auto const str = utf8.toStdString();

这篇关于Qt的呼叫在释放模式失败的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！