functions:
  isalnum:
    c-definition: 7.4.1.1
    in-latest-posix: ''
  isalnum_l:
    in-latest-posix: ''
  isalpha:
    c-definition: 7.4.1.2
    in-latest-posix: ''
  isalpha_l:
    in-latest-posix: ''
  isblank:
    c-definition: 7.4.1.3
    in-latest-posix: ''
  isblank_l:
    in-latest-posix: ''
  iscntrl:
    c-definition: 7.4.1.4
    in-latest-posix: ''
  iscntrl_l:
    in-latest-posix: ''
  isdigit:
    c-definition: 7.4.1.5
    in-latest-posix: ''
  isdigit_l:
    in-latest-posix: ''
  isgraph:
    c-definition: 7.4.1.6
    in-latest-posix: ''
  isgraph_l:
    in-latest-posix: ''
  islower:
    c-definition: 7.4.1.7
    in-latest-posix: ''
  islower_l:
    in-latest-posix: ''
  isprint:
    c-definition: 7.4.1.8
    in-latest-posix: ''
  isprint_l:
    in-latest-posix: ''
  ispunct:
    c-definition: 7.4.1.9
    in-latest-posix: ''
  ispunct_l:
    in-latest-posix: ''
  isspace:
    c-definition: 7.4.1.10
    in-latest-posix: ''
  isspace_l:
    in-latest-posix: ''
  isupper:
    c-definition: 7.4.1.11
    in-latest-posix: ''
  isupper_l:
    in-latest-posix: ''
  isxdigit:
    c-definition: 7.4.1.12
    in-latest-posix: ''
  isxdigit_l:
    in-latest-posix: ''
  tolower:
    c-definition: 7.4.2.1
    in-latest-posix: ''
  tolower_l:
    in-latest-posix: ''
  toupper:
    c-definition: 7.4.2.2
    in-latest-posix: ''
  toupper_l:
    in-latest-posix: ''