Hi Dietmar!
On 14.08.2014 08:21, dietmar.schind...@manroland-web.com wrote:
> These do not work if char is signed.
You are right, I missed the type casts ... sorry
size_t utf8len( const char* s )
{
size_t n = 0;
while (*s)
if ((unsigned char)(*s++ ^ 0x40) < (unsigned char)0xC0)
n++;
return n;
}
char *utf8skip( char const* s, size_t n )
{
for ( ; n && *s; --n )
while ((unsigned char)(*++s ^ 0x40) >= (unsigned char)0xC0);
return (char*)s;
}
I know, most would prefer to use (unsigned char) ahead of *++s or *s++,
but at least gcc gave better optimized x86 code for my type casts.
--
Harald
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