Zephyr API Documentation
4.0.99
A Scalable Open Source RTOS
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limits.h
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/* limits.h */
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/*
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* Copyright (c) 2014 Wind River Systems, Inc.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_LIB_LIBC_MINIMAL_INCLUDE_LIMITS_H_
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#define ZEPHYR_LIB_LIBC_MINIMAL_INCLUDE_LIMITS_H_
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#ifdef __cplusplus
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extern
"C"
{
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#endif
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#if __CHAR_BIT__ == 8
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#define UCHAR_MAX 0xFFU
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#else
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#error "unexpected __CHAR_BIT__ value"
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#endif
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#define SCHAR_MAX __SCHAR_MAX__
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#define SCHAR_MIN (-SCHAR_MAX - 1)
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#ifdef __CHAR_UNSIGNED__
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/* 'char' is an unsigned type */
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#define CHAR_MAX UCHAR_MAX
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#define CHAR_MIN 0
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#else
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/* 'char' is a signed type */
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#define CHAR_MAX SCHAR_MAX
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#define CHAR_MIN SCHAR_MIN
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#endif
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#define CHAR_BIT __CHAR_BIT__
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#define LONG_BIT (__SIZEOF_LONG__ * CHAR_BIT)
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#define WORD_BIT (__SIZEOF_POINTER__ * CHAR_BIT)
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#define INT_MAX __INT_MAX__
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#define SHRT_MAX __SHRT_MAX__
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#define LONG_MAX __LONG_MAX__
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#define LLONG_MAX __LONG_LONG_MAX__
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#define INT_MIN (-INT_MAX - 1)
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#define SHRT_MIN (-SHRT_MAX - 1)
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#define LONG_MIN (-LONG_MAX - 1L)
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#define LLONG_MIN (-LLONG_MAX - 1LL)
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#if __SIZE_MAX__ == __UINT32_MAX__
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#define SSIZE_MAX __INT32_MAX__
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#elif __SIZE_MAX__ == __UINT64_MAX__
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#define SSIZE_MAX __INT64_MAX__
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#else
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#error "unexpected __SIZE_MAX__ value"
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#endif
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#if __SIZEOF_SHORT__ == 2
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#define USHRT_MAX 0xFFFFU
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#else
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#error "unexpected __SIZEOF_SHORT__ value"
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#endif
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#if __SIZEOF_INT__ == 4
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#define UINT_MAX 0xFFFFFFFFU
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#else
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#error "unexpected __SIZEOF_INT__ value"
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#endif
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#if __SIZEOF_LONG__ == 4
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#define ULONG_MAX 0xFFFFFFFFUL
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#elif __SIZEOF_LONG__ == 8
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#define ULONG_MAX 0xFFFFFFFFFFFFFFFFUL
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#else
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#error "unexpected __SIZEOF_LONG__ value"
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#endif
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#if __SIZEOF_LONG_LONG__ == 8
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#define ULLONG_MAX 0xFFFFFFFFFFFFFFFFULL
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#else
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#error "unexpected __SIZEOF_LONG_LONG__ value"
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#endif
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#define PATH_MAX 256
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#ifdef __cplusplus
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}
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#endif
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#endif
/* ZEPHYR_LIB_LIBC_MINIMAL_INCLUDE_LIMITS_H_ */
lib
libc
minimal
include
limits.h
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