setlocale
printf
scanf
isalnum
isalpha
isblank
iscntrl
isdigit
isgraph
islower
isprint
ispunct
isspace
isupper
isxdigit
iswalnum
iswalpha
iswblank
iswcntrl
iswctype
iswdigit
iswgraph
iswlower
iswprint
iswpunct
iswspace
iswupper
iswxdigit
tolower
toupper
towlower
towupper
strtof
strtod
strtold
wcstof
wcstod
wcstold
strcoll
wcscoll
localeconv
mblen
mbstowcs
mbtowc
wcstombs
wcsxfrm
strerror
%[0-9]*(?:\.)?[0-9]*[efgEFG]
"[^"]*%[-+ #0]*[0-9]*(\.[0-9*]+)?[efgEFG][^"]*"
"[^"]*%[lL]?f[^"]*"
