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Diffstat (limited to 'lib/libc/locale/toupper.3')
| -rw-r--r-- | lib/libc/locale/toupper.3 | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/libc/locale/toupper.3 b/lib/libc/locale/toupper.3 index 33742da..28bc027 100644 --- a/lib/libc/locale/toupper.3 +++ b/lib/libc/locale/toupper.3 @@ -51,6 +51,8 @@ The .Fn toupper function converts a lower-case letter to the corresponding upper-case letter. +For 8-bit wide locales the value of the argument is +representable as an unsigned char or the value of EOF. .SH RETURN VALUES If the argument is a lower-case letter, the .Fn toupper |
