Check if a symbol is a managing key.
int msymbol_is_managing_key (MSymbol symbol)
Check if a symbol is a managing key. The msymbol_is_managing_key() function checks if the symbol symbol is a managing key or not.
Return 1 if the symbol is a managing key. Otherwise, return 0.
Copyright (C) 2001 Information-technology Promotion Agency (IPA)
Copyright (C) 2001-2011 National Institute of Advanced Industrial Science and Technology (AIST)
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