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# towlower

From cppreference.com
< c‎ | string‎ | wide

Defined in header `<wctype.h>` |  |
wint_t towlower( wint_t ch ); |  |

Converts the given wide character to lowercase, if possible.

### [edit] Parameters

ch | - | wide character to be converted

### [edit] Return value

Lowercase version of `ch` or unmodified `ch` if no lowercase version is listed in the current C locale.

### [edit] 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.

### [edit] See also

towupper | converts a wide character to uppercase (function) [edit]
tolower | converts a character to lowercase (function) [edit]
C++ documentation for towlower

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