Function StringCompare

be/src/runtime/string-value.inline.h:36–45

Compare two strings. Returns: < 0 if s1 < s2 0 if s1 == s2 > 0 if s1 > s2 - s1/n1: ptr/len for the first string - s2/n2: ptr/len for the second string - len: min(n1, n2) - this can be more cheaply passed in by the caller

///   - s2/n2: ptr/len for the second string
///   - len: min(n1, n2) - this can be more cheaply passed in by the caller
static inline int StringCompare(const char* s1, int n1, const char* s2, int n2, int len) {
  // memcmp has undefined behavior when called on nullptr for either pointer
  //
  // GCC gives a warning about overflowing the size argument of memcmp, because
  // it thinks 'len' can be negative. 'len' is never negative, so, this just uses
  // len <= 0 and returns 0 for that case to avoid the warning.
  const int result = (len <= 0) ? 0 : memcmp(s1, s2, len);
  if (result != 0) return result;
  return n1 - n2;
}

inline int StringValue::Compare(const StringValue& other) const {
  SimpleString this_s = ToSimpleString();