Character test
Name | Brief description |
isalnum | Test for alphanumeric character |
isalnum | Test for alphanumeric character |
isalpha | Test for letter |
isascii | Test for EBCDIC character |
iscntrl | Test for control character |
isdigit | Test for digit |
isebcdic | Test for EBCDIC character |
isgraph | Test for printable character except space |
islower | Test for lowercase letter |
isprint | Test for printable character including space |
ispunct | Test for special character |
isspace | Test for white-space character |
isupper | Test for uppercase letter |
isxdigit | Test for hexadecimal digit |
Wide character test
Name | Brief description |
iswalnum | Test for alphanumeric wide character |
iswcntrl | Test for wide control character |
iswctype | Test for wide character in character class chartype |
iswdigit | Test for decimal-digit wide character |
iswgraph | Test for visible wide character (excluding space) |
islower | Test for lowercase wide character |
iswprint | Test for printing wide character (including space) |
iswpunct | Test for punctuation wide character |
iswspace | Test for white-space wide character |
iswupper | Test for uppercase wide character |
iswxdigit | Test for hexadecimal wide-character digit |
Character conversion
Name | Brief description |
toascii | Conversion to EBCDIC |
toebcdic | Conversion to EBCDIC |
tolower | Conversion to lowercase |
toupper | Conversion to uppercase |
Wide character conversion
Name | Brief description |
wcrtomb | Convert wide character to multibyte character |
wctob | Convert wide character to (one-byte) multibyte character |
towlower | Convert wide character to lowercase |
towupper | Convert wide character to uppercase |