ce-putprop

Arguments: obj value ind &optional env

Returns value, after storing it as the ind property of obj. obj may be any object, but it is generally intended that it either be a symbol or a cons. The environment is specified either by the presence of the env argument, or the value of sys:*compile-file-environment*, or the value of sys:*evaluation-environment*, but only if it contains an :evaluation. If either environment is non-nil, then it must be an environment created by sys::make-compile-file-environment. The property is stored into the environment using #'eq as the test for symbols, and #'equal for any other object. If the specified environment is nil, then the property is stored in the global environment.

If the value is nil, the property is effectively removed, as if by remprop, remhash, etc.

See environments.htm for more information on environments.

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Created 2010.1.21.