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lib: convert u16_strlen() into a macro

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The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This commit is contained in:
Heinrich Schuchardt 2022-04-02 11:46:58 +02:00
parent fe869e11c7
commit 0121282d1a
2 changed files with 14 additions and 24 deletions
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26
include/charset.h
View file

@ -200,18 +200,6 @@ 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
*
* This function matches wsclen() if the -fshort-wchar compiler flag is set.
* In the EFI context we explicitly need a function handling u16 strings.
*
* @in: null terminated u16 string
* Return: number of non-zero words.
* This is not the number of utf-16 letters!
*/
size_t u16_strlen(const void *in);
/**
* u16_strsize() - count size of u16 string in bytes including the null
* character
@ -236,6 +224,20 @@ size_t u16_strsize(const void *in);
*/
size_t u16_strnlen(const u16 *in, size_t count);
/**
* u16_strlen - count non-zero words
*
* This function matches wsclen() if the -fshort-wchar compiler flag is set.
* In the EFI context we explicitly need a function handling u16 strings.
*
* @in: null terminated u16 string
* Return: number of non-zero words.
* This is not the number of utf-16 letters!
*/
size_t u16_strlen(const void *in);
#define u16_strlen(in) u16_strnlen(in, SIZE_MAX)
/**
* u16_strcpy() - copy u16 string
*

12
lib/charset.c
View file

@ -375,18 +375,6 @@ int u16_strncmp(const u16 *s1, const u16 *s2, size_t n)
return ret;
}
size_t u16_strlen(const void *in)
{
const char *pos = in;
size_t ret;
for (; pos[0] || pos[1]; pos += 2)
;
ret = pos - (char *)in;
ret >>= 1;
return ret;
}
size_t __efi_runtime u16_strnlen(const u16 *in, size_t count)
{
size_t i;