C Language and Libraries Help (clang.hlp) (Table of Contents; Topic list)
_searchenv
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─────Run-Time Library───────────────────────────────────────────────────────
 
  Include:   <stdlib.h>
 
  Syntax:    void _searchenv( char *filename, char *varname,
                              char *pathname );
 
  See also:  getenv, _putenv
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