Function parseReal

Siv3D/src/ThirdParty/tinyobjloader/tiny_obj_loader.h:967–975

}

static inline real_t parseReal(const char **token, double default_value = 0.0) {
  (*token) += strspn((*token), " \t");
  const char *end = (*token) + strcspn((*token), " \t\r");
  double val = default_value;
  tryParseDouble((*token), end, &val);
  real_t f = static_cast<real_t>(val);
  (*token) = end;
  return f;
}

static inline bool parseReal(const char **token, real_t *out) {
  (*token) += strspn((*token), " \t");