glutExtensionSupported (3) - Linux Man Pages

glutExtensionSupported: Determine if an OpenGL extension is available.

Command to display glutExtensionSupported manual in Linux: $ man 3 glutExtensionSupported

glutExtensionSupported - Determine if an OpenGL extension is available.

OpenGLUT - opengl

In openglut.h Ft int Fn glutExtensionSupported const char *extension

Bf Em
extension Ef
A string-name of an extension.

Returns 0 if OpenGLUT cannot determine that the requested extension is definitely present. Only checks extensions from glGetString().

Wouldn't this be simpler and clearer if we used strtok()?

Consider an ogWarning() if there is no current rendering context.

This is an ugly bit of code with 3 return statements, one of which is never reached.