A code point encoded by one UTF-16 symbol is converted to a maximum of three UTF-8 symbols.
0xffff could be encoded as 0xef 0xbf 0xbf. The first byte carries four bits, the second and third byte carry six bits each. A code point encoded by two UTF-16 symbols is converted to four UTF-8 symbols. Fixes: 78178bb0c9d lib: add some utf16 handling helpers Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de> --- The code is only used by efi_loader. So this patch should go via efi-next. --- include/charset.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/charset.h b/include/charset.h index 9c2866bbe6..2f7f7eacc9 100644 --- a/include/charset.h +++ b/include/charset.h @@ -9,7 +9,7 @@ #ifndef __CHARSET_H_ #define __CHARSET_H_ -#define MAX_UTF8_PER_UTF16 4 +#define MAX_UTF8_PER_UTF16 3 /** * utf16_strlen() - Get the length of an utf16 string @@ -52,7 +52,7 @@ uint16_t *utf16_strdup(const uint16_t *s); * Converts 'size' characters of the utf16 string 'src' to utf8 * written to the 'dest' buffer. * - * NOTE that a single utf16 character can generate up to 4 utf8 + * NOTE that a single utf16 character can generate up to 3 utf8 * characters. See MAX_UTF8_PER_UTF16. * * @dest the destination buffer to write the utf8 characters -- 2.14.1 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot