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llvm-project/libc/include/wchar.yaml
Hardik Chona bfa88a8d3c [libc] Implement wcscoll (#192778) 
_Closes #191073_
- `libc/src/wchar/wcscoll.cpp` - Implementation of wcscoll
- `libc/src/wchar/wcscoll.h` - Internal header for wcscoll
- `libc/include/wchar.yaml` - Added wcscoll to public header spec
- `libc/src/wchar/CMakeLists.txt` - Added build target for wcscoll
- `libc/config/linux/x86_64/entrypoints.txt` - Registered wcscoll
entrypoint
- `libc/test/src/wchar/wcscoll_test.cpp` - Unit tests for wcscoll
- `libc/test/src/wchar/CMakeLists.txt` - Added test target for wcscoll

Note: Locale support is not yet implemented. `wcscoll` currently behaves
identically to `wcscmp` until locale support is available in llvm-libc.
2026-04-24 13:54:26 -07:00

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header: wchar.h
standards:
- stdc
macros:
- macro_name: "NULL"
macro_header: null-macro.h
- macro_name: WEOF
macro_header: wchar-macros.h
types:
- type_name: FILE
- type_name: rsize_t
- type_name: size_t
# TODO: Remove this once we have a function declaration using "struct tm"
# (wcsftime). We're declaring it here now, since libc++ expects
# forward-declaration of "struct tm" in the <wchar.h> header.
- type_name: struct_tm
- type_name: wint_t
- type_name: wchar_t
- type_name: mbstate_t
enums: []
objects: []
functions:
- name: wcslen
standards:
- stdc
return_type: size_t
arguments:
- type: const wchar_t *
- name: wcsnlen
standards:
- stdc
return_type: size_t
arguments:
- type: const wchar_t *
- type: size_t
- name: wctob
standards:
- stdc
return_type: int
arguments:
- type: wint_t
- name: btowc
standards:
- stdc
return_type: wint_t
arguments:
- type: int
- name: mbrtowc
standards:
- stdc
return_type: size_t
arguments:
- type: wchar_t *__restrict
- type: const char *__restrict
- type: size_t
- type: mbstate_t *__restrict
- name: mbsnrtowcs
standards:
- stdc
return_type: size_t
arguments:
- type: wchar_t *__restrict
- type: const char **__restrict
- type: size_t
- type: size_t
- type: mbstate_t *__restrict
- name: mbsrtowcs
standards:
- stdc
return_type: size_t
arguments:
- type: wchar_t *__restrict
- type: const char **__restrict
- type: size_t
- type: mbstate_t *__restrict
- name: mbsinit
standards:
- stdc
return_type: int
arguments:
- type: mbstate_t *
- name: mblen
standards:
- stdc
return_type: int
arguments:
- type: const char *
- type: size_t
- name: mbrlen
standards:
- stdc
return_type: size_t
arguments:
- type: const char *__restrict
- type: size_t
- type: mbstate_t *__restrict
- name: wmemset
standards:
- stdc
return_type: wchar_t *
arguments:
- type: wchar_t *
- type: wchar_t
- type: size_t
- name: wcschr
standards:
- stdc
return_type: const wchar_t *
arguments:
- type: const wchar_t *
- type: wchar_t
- name: wcsncmp
standards:
- stdc
return_type: int
arguments:
- type: const wchar_t *
- type: const wchar_t *
- type: size_t
- name: wcscmp
standards:
- stdc
return_type: int
arguments:
- type: const wchar_t *
- type: const wchar_t *
- name: wcscoll
standards:
- stdc
return_type: int
arguments:
- type: const wchar_t *
- type: const wchar_t *
- name: wcspbrk
standards:
- stdc
return_type: const wchar_t *
arguments:
- type: const wchar_t *
- type: const wchar_t *
- name: wcsrchr
standards:
- stdc
return_type: const wchar_t *
arguments:
- type: const wchar_t *
- type: wchar_t
- name: wcsspn
standards:
- stdc
return_type: size_t
arguments:
- type: const wchar_t *
- type: const wchar_t *
- name: wcscspn
standards:
- stdc
return_type: size_t
arguments:
- type: const wchar_t *
- type: const wchar_t *
- name: wmemcmp
standards:
- stdc
return_type: int
arguments:
- type: const wchar_t *
- type: const wchar_t *
- type: size_t
- name: wmemchr
standards:
- stdc
return_type: const wchar_t *
arguments:
- type: const wchar_t *
- type: wchar_t
- type: size_t
- name: wmempcpy
standards:
- gnu
return_type: wchar_t *
arguments:
- type: wchar_t *
- type: const wchar_t *
- type: size_t
- name: wmemcpy
standards:
- stdc
return_type: wchar_t *
arguments:
- type: wchar_t *__restrict
- type: const wchar_t *__restrict
- type: size_t
- name: wmemmove
standards:
- stdc
return_type: wchar_t *
arguments:
- type: wchar_t *
- type: const wchar_t *
- type: size_t
- name: wcsncpy
standards:
- stdc
return_type: wchar_t *
arguments:
- type: wchar_t *__restrict
- type: const wchar_t *__restrict
- type: size_t
- name: wcscat
standards:
- stdc
return_type: wchar_t *
arguments:
- type: wchar_t *__restrict
- type: const wchar_t *__restrict
- name: wcslcat
standards:
- stdc
return_type: size_t
arguments:
- type: wchar_t *__restrict
- type: const wchar_t *__restrict
- type: size_t
- name: wcsstr
standards:
- stdc
return_type: const wchar_t *
arguments:
- type: const wchar_t *
- type: const wchar_t *
- name: wcsncat
standards:
- stdc
return_type: wchar_t *
arguments:
- type: wchar_t *__restrict
- type: const wchar_t *__restrict
- type: size_t
- name: wcsnrtombs
standards:
- stdc
return_type: size_t
arguments:
- type: char *__restrict
- type: const wchar_t **__restrict
- type: size_t
- type: size_t
- type: mbstate_t *__restrict
- name: wcsrtombs
standards:
- stdc
return_type: size_t
arguments:
- type: char *__restrict
- type: const wchar_t **__restrict
- type: size_t
- type: mbstate_t *__restrict
- name: wcrtomb
standards:
- stdc
return_type: size_t
arguments:
- type: char *__restrict
- type: wchar_t
- type: mbstate_t *__restrict
- name: wcscpy
standards:
- stdc
return_type: wchar_t *
arguments:
- type: wchar_t *__restrict
- type: const wchar_t *__restrict
- name: wcsdup
standards:
- stdc
return_type: wchar_t *
arguments:
- type: const wchar_t *
- name: wcslcpy
standards:
- stdc
return_type: size_t
arguments:
- type: wchar_t *__restrict
- type: const wchar_t *__restrict
- type: size_t
- name: wcstok
standards:
- stdc
return_type: wchar_t *
arguments:
- type: wchar_t *__restrict
- type: const wchar_t *__restrict
- type: wchar_t **__restrict
- name: wcpcpy
standards:
- stdc
return_type: wchar_t *
arguments:
- type: wchar_t *__restrict
- type: const wchar_t *__restrict
- name: wcpncpy
standards:
- stdc
return_type: wchar_t *
arguments:
- type: wchar_t *__restrict
- type: const wchar_t *__restrict
- type: size_t
- name: wcstol
standards:
- stdc
return_type: long
arguments:
- type: const wchar_t *__restrict
- type: wchar_t **__restrict
- type: int
- name: wcstoll
standards:
- stdc
return_type: long long
arguments:
- type: const wchar_t *__restrict
- type: wchar_t **__restrict
- type: int
- name: wcstoul
standards:
- stdc
return_type: unsigned long
arguments:
- type: const wchar_t *__restrict
- type: wchar_t **__restrict
- type: int
- name: wcstoull
standards:
- stdc
return_type: unsigned long long
arguments:
- type: const wchar_t *__restrict
- type: wchar_t **__restrict
- type: int
- name: wcstof
standards:
- stdc
return_type: float
arguments:
- type: const wchar_t *__restrict
- type: wchar_t **__restrict
- name: wcstod
standards:
- stdc
return_type: double
arguments:
- type: const wchar_t *__restrict
- type: wchar_t **__restrict
- name: wcstold
standards:
- stdc
return_type: long double
arguments:
- type: const wchar_t *__restrict
- type: wchar_t **__restrict
- name: wcsxfrm
standards:
- stdc
return_type: size_t
arguments:
- type: wchar_t *__restrict
- type: const wchar_t *__restrict
- type: size_t
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