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/*
* 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;
}
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