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Michael JonesandMuhammad Bassiouni f1c26bce3f [libc] Implement towupper and towlower entrypoints (#198659)
Following up on #187670 to add public entrypoints for the wctype
conversion functions.

Assisted-by: Automated tooling, human reviewed.

---------

Co-authored-by: Muhammad Bassiouni <60100307+bassiounix@users.noreply.github.com>
2026-05-28 10:21:20 -07:00

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header: wctype.h
standards:
- stdc
types:
- type_name: wint_t
- type_name: wctype_t
functions:
- name: iswalpha
standards:
- stdc
return_type: int
arguments:
- type: wint_t
- name: iswupper
standards:
- stdc
return_type: int
arguments:
- type: wint_t
- name: iswcntrl
standards:
- stdc
return_type: int
arguments:
- type: wint_t
- name: iswgraph
standards:
- stdc
return_type: int
arguments:
- type: wint_t
- name: iswdigit
standards:
- stdc
return_type: int
arguments:
- type: wint_t
- name: iswlower
standards:
- stdc
return_type: int
arguments:
- type: wint_t
- name: iswspace
standards:
- stdc
return_type: int
arguments:
- type: wint_t
- name: iswblank
standards:
- stdc
return_type: int
arguments:
- type: wint_t
- name: iswxdigit
standards:
- stdc
return_type: int
arguments:
- type: wint_t
- name: iswalnum
standards:
- stdc
return_type: int
arguments:
- type: wint_t
- name: iswpunct
standards:
- stdc
return_type: int
arguments:
- type: wint_t
- name: iswprint
standards:
- stdc
return_type: int
arguments:
- type: wint_t
- name: iswctype
standards:
- stdc
return_type: int
arguments:
- type: wint_t
- type: wctype_t
- name: wctype
standards:
- stdc
return_type: wctype_t
arguments:
- type: const char*
- name: towlower
standards:
- stdc
return_type: wint_t
arguments:
- type: wint_t
- name: towupper
standards:
- stdc
return_type: wint_t
arguments:
- type: wint_t