1 files changed, 34 insertions, 0 deletions
diff --git a/src/support/safe_integer.h b/src/support/safe_integer.h
new file mode 100644
index 000000000..f240644c8
--- /dev/null
+++ b/src/support/safe_integer.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2016 WebAssembly Community Group participants
+ *
+ * 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 wasm_safe_integer_h
+#define wasm_safe_integer_h
+
+#include <cstdint>
+
+namespace wasm {
+bool isInteger(double x);
+bool isUInteger32(double x);
+bool isSInteger32(double x);
+uint32_t toUInteger32(double x);
+int32_t toSInteger32(double x);
+bool isUInteger64(double x);
+bool isSInteger64(double x);
+uint64_t toUInteger64(double x);
+int64_t toSInteger64(double x);
+}  // namespace wasm
+
+#endif  // wasm_safe_integer_h