qt-creator

问题 Using the Memcheck function of Qt Creator returns the following: valgrind: Bad option: --xml=yes, but no XML destination specified valgrind: --xml=yes has been specified, but there is no XML output valgrind: destination. You must specify an XML output destination valgrind: using --xml-fd, --xml-file or --xml-socket. valgrind: Use --help for more information or consult the user manual. Analyzing finished. ** Unknown error ** Is there something in the configuration that hasn't been set properly

问题 This is my first question here, so sorry in forward if it is not well formulated or stupid. I am trying to use the octave libraries with C++ I am using Qt creator on Ubuntu (linux noob) #include "octave/oct.h" int main(int argc, char *argv[]) { QApplication a(argc, argv); Matrix matrix(3,4); return a.exec(); } At first I got some undefined references errors. I figured out the program is missing libraries, so I looked for the library "liboctave.so". I found it in usr/lib/octave-3.2.4. To be

问题 My Qt5 app crashes when I hit the close window returning: MyApp(28741,0x7fff7aa73000) malloc: *** error for object 0x7fc40bc8e300: pointer being freed was not allocated *** set a breakpoint in malloc_error_break to debug The program has unexpectedly finished. How to “set a breakpoint in malloc_error_break to debug” in Qt Creator 4 (Mac OS)? Should be better to do it via terminal in lldb/gdb, how? Reference: How to find reason for app crash on close? 回答1: In Breakpoints window, right click->

问题 I am aware about how to add compiler in Qt Creator. However my Qt always chooses MSVC compiler. How to set MinGW (built-in or external) instead of MSVC? Couldn't find any post which can help a newbie to know how to change the compiler of desired preference. My current system is Windows, however information on Linux (g++ <--> clang++) is also welcome. 回答1: Following is the way with Qt 5.9: While configuring a new project, select only those compilers/kits which are required; For 64-bit system,

问题 I'm having a play around with Qt mainly looking to rewrite an old java app for symbian and I have got my self a bit confused. I should first of all explain that C++ is not my kung-fu, and that may be the cause of the problem. What I am trying to do is add a simple QPushButton to a Vertical Layout in a main window which has been built in qt designer at run time. My example code is something like this... QPushButton button = new QPushButton(); QString text("Testing Buttons"); button.setText

问题 I'm using Qt Creator 2.6.0 on Mac OS 10.8.2, and I've created a myproject.pro.shared file in the same folder as myproject.pro . I copied the example XML from https://qt-project.org/doc/qtcreator-2.6/creator-sharing-project-settings.html to the myproject.pro.shared file. I deleted my ~/.config/QtProject/ folder and I do not have a myproject.pro.user file. When I launch Qt Creator and open the project file, the settings specified in myproject.pro.shared are not used. For example, myproject.pro

问题 I'm just starting out with C++ and am learning how to use QT creator as the IDE so I suspect this might be really easy but I might be missing something. I installed apollo MQ and installed the apache CMS(C++ messaging service) so I can interact with the server in C++. The problem is, I have no clue what I'm doing :-) (yet), and am not sure why I'm getting the above error when using the examples. I am pretty sure the examples are good because they are included in the source's example folder so

问题 I'm debugging my c++ application and I have some string variables which can have 2000 characters or more. When debugging, the variable's value is shown incomplete (ending with "...") instead of showing the correct value. Also when I right click the variable and select "Copy current VALUE to clipboard" it is also copied incomplete. I think this must be a very basic thing but I didn't found in qt creator how to show the actual complete content of the variable? Thanks in advance. In Tools ->

问题 I want to test Intel MKL matrix multiplication, So I include and I just use the cblas_dgemm function, but it always says undefined reference to `cblas_dgemm' I also link the -lmkl_core -lmkl_blas95_lp64 -lmkl_lapack95_lp64 , But I have testes many combinations among the libraries in the $MKLROOT/lib/intel64/ directory, the error still exists. Could someone give me some advice, please? Thanks. 回答1: Maybe this is a right answer, we can use cblas_ : In the project file of a QT Creator: unix {

问题 Does anyone know how to configure Qt-Creator to use cygwin's make to build a project? Maybe this is a simple cygwin-mangled Windows path problem, but I can't get Qt-Creator to find/run cygwin's make . My make lives in /usr/bin , which is actually c:\cygwin\c\usr\bin on my system. Either way, Qt can't seem to find it using all the obvious build settings I can think of. Thanks--- 回答1: [This answer works for me using Qt Creator 2.0.93 (beta 2.1), YMMV] I spent some time tracking down a similar