[Qgis-developer] Master_2: error: ‘isinf’ was not declared in this scope

[Matthias Kuhn]

He René-Luc

does it help if you #include <math.h> in src/gui/qgsscalerangewidget.cpp?

Matthias

On 10/17/2016 06:08 PM, René-Luc Dhont wrote:
> Hi devs,
> 
> I have this error during the qgis master_2 building:
> ```
> ../src/gui/qgsscalerangewidget.cpp:93:21: error: ‘isinf’ was not
> declared in this scope
>    if ( isinf( scale ) )
>                      ^
> ../src/gui/qgsscalerangewidget.cpp:93:21: note: suggested alternative:
> In file included from /usr/include/c++/5/random:38:0,
>                  from /usr/include/c++/5/bits/stl_algo.h:66,
>                  from /usr/include/c++/5/algorithm:62,
>                  from /usr/include/qt4/QtCore/qglobal.h:68,
>                  from /usr/include/qt4/QtCore/qnamespace.h:45,
>                  from /usr/include/qt4/QtCore/qobjectdefs.h:45,
>                  from /usr/include/qt4/QtCore/qobject.h:47,
>                  from /usr/include/qt4/QtGui/qlayout.h:45,
>                  from /usr/include/qt4/QtGui/qgridlayout.h:45,
>                  from /usr/include/qt4/QtGui/QGridLayout:1,
>                  from ../src/gui/qgsscalerangewidget.h:19,
>                  from ../src/gui/qgsscalerangewidget.cpp:16:
> /usr/include/c++/5/cmath:621:5: note:   ‘std::isinf’
>      isinf(_Tp __x)
>      ^
> ../src/gui/qgsscalerangewidget.cpp: In member function ‘void
> QgsScaleRangeWidget::setMaximumScale(double)’:
> ../src/gui/qgsscalerangewidget.cpp:105:21: error: ‘isinf’ was not
> declared in this scope
>    if ( isinf( scale ) )
>                      ^
> ../src/gui/qgsscalerangewidget.cpp:105:21: note: suggested alternative:
> In file included from /usr/include/c++/5/random:38:0,
>                  from /usr/include/c++/5/bits/stl_algo.h:66,
>                  from /usr/include/c++/5/algorithm:62,
>                  from /usr/include/qt4/QtCore/qglobal.h:68,
>                  from /usr/include/qt4/QtCore/qnamespace.h:45,
>                  from /usr/include/qt4/QtCore/qobjectdefs.h:45,
>                  from /usr/include/qt4/QtCore/qobject.h:47,
>                  from /usr/include/qt4/QtGui/qlayout.h:45,
>                  from /usr/include/qt4/QtGui/qgridlayout.h:45,
>                  from /usr/include/qt4/QtGui/QGridLayout:1,
>                  from ../src/gui/qgsscalerangewidget.h:19,
>                  from ../src/gui/qgsscalerangewidget.cpp:16:
> /usr/include/c++/5/cmath:621:5: note:   ‘std::isinf’
>      isinf(_Tp __x)
>      ^
> ```
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