File: str_len.c

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#undef __dietlibc__
#include "str.h"

size_t str_len(const char* in) {
  register const char* t=in;
  for (;;) {
    if (!*t) break; ++t;
    if (!*t) break; ++t;
    if (!*t) break; ++t;
    if (!*t) break; ++t;
  }
  return t-in;
}