HelpPC 2.10 Quick Reference Utility Copyright 1991 David Jurgens

             size_t strspn( const char *str1, const char *str2 )


       - prototype in string.h

       - returns length of initial segment of str1 that consists
         entirely of characters from str2

Esc or Alt-X to exit strspn Home/PgUp/PgDn/End ←↑↓→