HelenOS sources
isprint 42 common/include/ctype.h int isprint(int);
isprint 79 common/stdc/ctype.c return isprint(c) && c != ' ';
isprint 99 common/stdc/ctype.c return !isspace(c) && !isalnum(c) && isprint(c);
isprint 42 kernel/generic/common/include/ctype.h int isprint(int);
isprint 79 kernel/generic/common/stdc/ctype.c return isprint(c) && c != ' ';
isprint 99 kernel/generic/common/stdc/ctype.c return !isspace(c) && !isalnum(c) && isprint(c);
isprint 42 uspace/lib/c/common/include/ctype.h int isprint(int);
isprint 79 uspace/lib/c/common/stdc/ctype.c return isprint(c) && c != ' ';
isprint 99 uspace/lib/c/common/stdc/ctype.c return !isspace(c) && !isalnum(c) && isprint(c);
isprint 42 uspace/lib/posix/include/common/ctype.h int isprint(int);
isprint 191 uspace/lib/posix/src/fnmatch.c { "print", isprint },
HelenOS homepage, sources at GitHub