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| author | AKASHI Takahiro <takahiro.akashi@linaro.org> | 2019-09-18 10:26:29 +0900 |
|---|---|---|
| committer | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2019-09-20 20:09:19 +0200 |
| commit | f8062c963a6285ce04b75570a1beaec27a40aec1 (patch) | |
| tree | 628672a36bc0d31d80d260c35a9c0e60480a3a43 /include/charset.h | |
| parent | 5a24239c951e8dc3177b63881631868b8d487920 (diff) | |
| download | u-boot-f8062c963a6285ce04b75570a1beaec27a40aec1.tar.gz | |
lib: charset: add u16_str<n>cmp()
u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Diffstat (limited to 'include/charset.h')
| -rw-r--r-- | include/charset.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/charset.h b/include/charset.h index 020f8a90df..fde6bddbc2 100644 --- a/include/charset.h +++ b/include/charset.h @@ -168,6 +168,21 @@ s32 utf_to_lower(const s32 code); */ s32 utf_to_upper(const s32 code); +/* + * u16_strncmp() - compare two u16 string + * + * @s1: first string to compare + * @s2: second string to compare + * @n: maximum number of u16 to compare + * Return: 0 if the first n u16 are the same in s1 and s2 + * < 0 if the first different u16 in s1 is less than the + * corresponding u16 in s2 + * > 0 if the first different u16 in s1 is greater than the + * corresponding u16 in s2 + */ +int u16_strncmp(const u16 *s1, const u16 *s2, size_t n); +#define u16_strcmp(s1, s2) u16_strncmp((s1), (s2), SIZE_MAX) + /** * u16_strlen - count non-zero words * |