[osg-users] osgviewerCocoa build error with clang 7.0.0

[Ravi Mathur]

Hi all,

The osgviewerCocoa example gives the following error during build:


Code:

ViewerCocoa.mm:176:9: error: 
cast from pointer to smaller type 'NSOpenGLPixelFormatAttribute'
(aka 'unsigned int') loses information 
(NSOpenGLPixelFormatAttribute)nil
^~~~~~~~~~~~~~~~~~~~~~




This occurs on the OpenSceneGraph-3.4 branch of the Git repo, using OSX 10.10.5 with the latest Command Line Tools (clang 7.0.0).

According to Apple's NSOpenGLPixelFormat reference (can't post url since this is my first post), the last element of the NSOpenGLPixelFormatAttribute array should be 0 (zero), not (NSOpenGLPixelFormatAttribute)nil . The new clang is strict about this, so throws an error.

Thanks!
Ravi

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Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=65557#65557