QDeadLineTimer - error C2039: max is no member of std::numeric_limits

betaros

Hi,

I try to compile my code, but I get the following errors in Visual Studio 2015:

1>  ### Compiling Common Headers...
1>c:\qt\5.8\msvc2015\include\qtcore\qdeadlinetimer.h(61): error C2039: "max": Is no member of "std::numeric_limits<__int64>"
1>  c:\program files (x86)\microsoft visual studio 14.0\vc\include\limits(960): note: view declaration of "std::numeric_limits<__int64>"
1>c:\qt\5.8\msvc2015\include\qtcore\qdeadlinetimer.h(61): error C3861: "max": Identifier not found.
1>c:\qt\5.8\msvc2015\include\qtcore\qdeadlinetimer.h(69): error C2039: "max": Is no member of "std::numeric_limits<__int64>"
1>  c:\program files (x86)\microsoft visual studio 14.0\vc\include\limits(960): note: view declaration of "std::numeric_limits<__int64>"
1>c:\qt\5.8\msvc2015\include\qtcore\qdeadlinetimer.h(69): error C2065: "max": Identifier not declared

As you may see in the path, I use Qt 5.8 and translated the error messages to english. Do you have any idea, how I can compile my code?

Greetings
betaros

SGaist

Hi and welcome to devnet,

Can you share your .pro file ?

betaros

Hi,

I didn't had a .pro file, but I generated one with Visual Studio. I cannot show you the whole file, but I hope my edited version might also help. I just removed the filenames from my project.

Project.pro

# ----------------------------------------------------
# This file is generated by the Qt Visual Studio Tools.
# ------------------------------------------------------

TEMPLATE = app
TARGET = PROJECT
DESTDIR = ../../Debug
CONFIG += debug console
DEFINES += PROJECT_DEF
INCLUDEPATH += ./../../PROJECT \
    ./GeneratedFiles \
    $(NOINHERIT)
LIBS += -L"." \
    -lShlwapi \
    -lAdvapi32 \
    -lWs2_32
PRECOMPILED_HEADER = "./utils/Includes.h"
DEPENDPATH += .
MOC_DIR += ./GeneratedFiles
OBJECTS_DIR += debug
UI_DIR += .
RCC_DIR += ./%(RootDir)%(Directory)
#Edited
HEADERS += .. 
#Edited
SOURCES += ..
#Edited
FORMS += ..
RESOURCES += ../Resources/Resources.qrc

Greetings
betaros

SGaist

Sorry, I almost never think of the use of the Visual Studio integration. Try adding /DNOMINMAX to your project defines.

betaros

@SGaist: No problem :) I have solved the problem by finding a point in the source code where the preprocessor overrides the max function...

Now it finds the right max function. But thank you for your help :)

SGaist

It was in your sources ?

betaros

Yes. I got a big codebase and try to compile it. I got the error because in the defines was something written like:

#define max(x,y) qMax(x,y)

Removing that resolved the probem.

SGaist

Tricky one !

Thanks for sharing :)