61 lines
2.5 KiB
C
61 lines
2.5 KiB
C
/**
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* @file blimits.h
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* @author Ambroz Bizjak <ambrop7@gmail.com>
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*
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* @section LICENSE
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the author nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef BADVPN_BLIMITS_H
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#define BADVPN_BLIMITS_H
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#include <stdint.h>
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#define BTYPE_IS_SIGNED(type) ((type)-1 < 0)
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#define BSIGNED_TYPE_MIN(type) ( \
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sizeof(type) == 1 ? INT8_MIN : ( \
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sizeof(type) == 2 ? INT16_MIN : ( \
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sizeof(type) == 4 ? INT32_MIN : ( \
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sizeof(type) == 8 ? INT64_MIN : 0))))
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#define BSIGNED_TYPE_MAX(type) ( \
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sizeof(type) == 1 ? INT8_MAX : ( \
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sizeof(type) == 2 ? INT16_MAX : ( \
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sizeof(type) == 4 ? INT32_MAX : ( \
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sizeof(type) == 8 ? INT64_MAX : 0))))
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#define BUNSIGNED_TYPE_MIN(type) ((type)0)
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#define BUNSIGNED_TYPE_MAX(type) ( \
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sizeof(type) == 1 ? UINT8_MAX : ( \
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sizeof(type) == 2 ? UINT16_MAX : ( \
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sizeof(type) == 4 ? UINT32_MAX : ( \
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sizeof(type) == 8 ? UINT64_MAX : 0))))
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#define BTYPE_MIN(type) (BTYPE_IS_SIGNED(type) ? BSIGNED_TYPE_MIN(type) : BUNSIGNED_TYPE_MIN(type))
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#define BTYPE_MAX(type) (BTYPE_IS_SIGNED(type) ? BSIGNED_TYPE_MAX(type) : BUNSIGNED_TYPE_MAX(type))
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#endif
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