1 files changed, 56 insertions, 0 deletions
diff --git a/lib/src/util/types.c b/lib/src/util/types.c
new file mode 100644
index 000000000..744192593
--- /dev/null
+++ b/lib/src/util/types.c
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2021 Cisco and/or its affiliates.
+ * 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.
+ */
+
+#include <hicn/util/types.h>
+
+uint32_t
+htonf (float f)
+{
+  uint32_t i;
+  uint32_t sign = 0;
+
+  if (f < 0)
+    {
+      sign = 1;
+      f = -f;
+    }
+
+  // i[31] = sign bit
+  i = sign << 31;
+
+  // i[30 to 16] = int(f)[14 to 0]
+  i |= (((uint32_t) f) & 0x7fff) << 16;
+
+  // i[15 to 0] = fraction(f) bits [15 to 0]
+  i |= (uint32_t) ((f - (uint32_t) f) * 65536.0f) & 0xffff;
+
+  return i;
+}
+
+float
+ntohf (uint32_t i)
+{
+  // integer part = i[14 to 0]
+  float f = (i >> 16) & 0x7fff;
+
+  // fraction part = i[15 to 0]
+  f += (i & 0xffff) / 65536.0f;
+
+  // sign = i[31]
+  if ((i >> 31) & 1)
+    f = -f;
+
+  return f;
+}