Validator checks if operands require extension

If required extension is not found, returning new error
SPV_ERROR_MISSING_EXTENSION.

1 files changed, 40 insertions, 0 deletions

diff --git a/source/util/string_utils.h b/source/util/string_utils.h
new file mode 100644
index 00000000..993b58df
--- /dev/null
+++ b/source/util/string_utils.h
@@ -0,0 +1,40 @@
+// Copyright (c) 2017 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef LIBSPIRV_UTIL_STRING_UTILS_H_
+#define LIBSPIRV_UTIL_STRING_UTILS_H_
+
+#include <sstream>
+#include <string>
+
+#include "util/string_utils.h"
+
+namespace spvutils {
+
+// Converts arithmetic value |val| to its default string representation.
+template <class T>
+std::string ToString(T val) {
+  static_assert(std::is_arithmetic<T>::value,
+                "spvutils::ToString is restricted to only arithmetic values");
+  std::stringstream os;
+  os << val;
+  return os.str();
+}
+
+// Converts cardinal number to ordinal number string.
+std::string CardinalToOrdinal(size_t cardinal);
+
+}  // namespace spvutils
+
+#endif  // LIBSPIRV_UTIL_STRING_UTILS_H_