towlower
From cppreference.com
| Defined in header <wctype.h>
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| wint_t towlower( wint_t wc ); |
(since C95) | |
Converts the given wide character to lowercase, if possible.
Parameters
| wc | - | wide character to be converted |
Return value
Lowercase version of wc or unmodified wc if no lowercase version is listed in the current C locale.
Notes
Only 1:1 character mapping can be performed by this function, e.g. the Greek uppercase letter 'Σ' has two lowercase forms, depending on the position in a word: 'σ' and 'ς'. A call to towlower cannot be used to obtain the correct lowercase form in this case.