Method AllocSub

extern/re2/re2/regexp.h:514–519

Allocate space for n sub-regexps.

  // Allocate space for n sub-regexps.
  void AllocSub(int n) {
    DCHECK(n >= 0 && static_cast<uint16_t>(n) == n);
    if (n > 1)
      submany_ = new Regexp*[n];
    nsub_ = static_cast<uint16_t>(n);
  }

  // Add Rune to LiteralString
  void AddRuneToString(Rune r);