Function string_length

system/lib/llvm-libc/src/string/string_utils.h:85–98

// Returns the length of a string, denoted by the first occurrence
// of a null terminator.
template <typename T> LIBC_INLINE size_t string_length(const T *src) {
#ifdef LIBC_COPT_STRING_UNSAFE_WIDE_READ
  // Unsigned int is the default size for most processors, and on x86-64 it
  // performs better than larger sizes when the src pointer can't be assumed to
  // be aligned to a word boundary, so it's the size we use for reading the
  // string a block at a time.
  if constexpr (cpp::is_same_v<T, char>)
    return string_length_wide_read<unsigned int>(src);
#endif
  size_t length;
  for (length = 0; *src; ++src, ++length)
    ;
  return length;
}

template <typename Word>
LIBC_INLINE void *find_first_character_wide_read(const unsigned char *src,