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/*
* Copyright (c) 2008, 2011 Nicira, 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 TYPE_PROPS_H
#define TYPE_PROPS_H 1
#include <limits.h>
#define TYPE_IS_INTEGER(TYPE) ((TYPE) 1.5 == (TYPE) 1)
#define TYPE_IS_SIGNED(TYPE) ((TYPE) 1 > (TYPE) -1)
#define TYPE_VALUE_BITS(TYPE) (sizeof(TYPE) * CHAR_BIT - TYPE_IS_SIGNED(TYPE))
#define TYPE_MINIMUM(TYPE) (TYPE_IS_SIGNED(TYPE) \
? ~(TYPE)0 << TYPE_VALUE_BITS(TYPE) \
: 0)
#define TYPE_MAXIMUM(TYPE) (TYPE_IS_SIGNED(TYPE) \
? ~(~(TYPE)0 << TYPE_VALUE_BITS(TYPE)) \
: (TYPE)-1)
/* Number of decimal digits required to format an integer of the given TYPE.
* Includes space for a sign, if TYPE is signed, but not for a null
* terminator.
*
* The value is an overestimate. */
#define INT_STRLEN(TYPE) (TYPE_IS_SIGNED(TYPE) + TYPE_VALUE_BITS(TYPE) / 3 + 1)
#endif /* type-props.h */
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