HelenOS sources

isgraph            77 common/stdc/ctype.c int isgraph(int c)
isgraph            77 kernel/generic/common/stdc/ctype.c int isgraph(int c)
isgraph            77 uspace/lib/c/common/stdc/ctype.c int isgraph(int c)
isgraph           121 uspace/lib/cpp/include/__bits/locale/locale_misc.hpp     bool isgraph(Char c, const locale& loc)