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#include <string.h>
#include "utf8.h"
#include "internal/common.h"
size_t
u8set(const char8_t *s, rune ch, size_t n)
{
int m;
char8_t buf[U8_LEN_MAX];
if (n == 0)
return 0;
if (ch <= _1B_MAX) {
memset((char *)s, ch, n);
return n;
}
m = rtou8(buf, ch, sizeof(buf));
for (size_t i = 0; i < n; i += m)
memcpy((char *)s + i, buf, m);
return n - n % m;
}
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