osx man page for gluerrorstring

GLUERRORSTRING(3G)														GLUERRORSTRING(3G)

NAME
       gluErrorString - produce an error string from a GL or GLU error code

C SPECIFICATION
       const GLubyte * gluErrorString( GLenum error )

PARAMETERS
       error  Specifies a GL or GLU error code.

DESCRIPTION
       gluErrorString  produces  an  error  string from a GL or GLU error code. The string is in ISO Latin 1 format. For example, gluErrorString(-
       GL_OUT_OF_MEMORY) returns the string out of memory.

       The standard GLU error codes are GLU_INVALID_ENUM, GLU_INVALID_VALUE, and GLU_OUT_OF_MEMORY.  Certain other GLU functions can  return  spe-
       cialized error codes through callbacks.	See the glGetError reference page for the list of GL error codes.

ERRORS
       NULL is returned if error is not a valid GL or GLU error code.

SEE ALSO
       glGetError, gluNurbsCallback, gluQuadricCallback, gluTessCallback

																GLUERRORSTRING(3G)