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Add minor improvements and cleanup

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This commit is contained in:
Justine Tunney 2020-10-27 03:39:46 -07:00
parent 9e3e985ae5
commit feed0d2b0e
163 changed files with 2286 additions and 2245 deletions
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18
libc/str/strclen.c
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@ -17,23 +17,23 @@
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/str/internal.h"
#include "libc/str/str.h"
/**
* Returns number of characters in UTF-8 string.
*/
size_t(strclen)(const char *s) { return strnclen(s, -1ull); }
size_t strclen(const char *s) {
return strnclen(s, -1);
}
noinline size_t(strnclen)(const char *s, size_t n) {
const unsigned char *p = (const unsigned char *)s;
size_t l = 0;
noinline size_t strnclen(const char *s, size_t n) {
size_t r = 0;
if (n) {
while (*p && n && iscont(*p)) ++p, --n;
while (*p) {
if (!iscont(*p++)) l++;
while (n && *s && (*s & 0300) == 0200) ++s, --n;
while (*s) {
if ((*s++ & 0300) != 0200) r++;
if (!--n) break;
}
}
return l;
return r;
}