welibc
A clear, secure, and well documented standard C library
limits.h
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1 /*******************************************************************************
2  Copyright (c) 2015 Walt Elam
3  All rights reserved.
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30 *******************************************************************************/
31 /***************************************************************************//**
32  @file limits.h
33 
34  @brief Specifies the sizes and characteristics of integral types.
35 *******************************************************************************/
36 #ifndef _LIMITS_H
37 #define _LIMITS_H
38 
39 /* Number of bits for the smallest object that is not a bit-field (byte) */
40 #define CHAR_BIT (8)
41 
42 /* Minimum value for an object of type signed char */
43 #define SCHAR_MIN (-127 - 1)
44 
45 /* Maximum value for an object of type signed char */
46 #define SCHAR_MAX (+127)
47 
48 /* Maximum value for an object of type unsigned char */
49 #define UCHAR_MAX (+255)
50 
51 /* Minimum value for an object of type char */
52 #define CHAR_MIN SCHAR_MIN
53 
54 /* Maximum value for an object of type char */
55 #define CHAR_MAX SCHAR_MAX
56 
57 /* Maximum number of bytes in a multibyte character, for any supported locale */
58 #define MB_LEN_MAX (4)
59 
60 /* Minimum value for an object of type short int */
61 #define SHRT_MIN (-32767 - 1)
62 
63 /* Maximum value for an object of type short int */
64 #define SHRT_MAX (+32767)
65 
66 /* Maximum value for an object of type unsigned short int */
67 #define USHRT_MAX (+65535)
68 
69 /* Minimum value for an object of type int */
70 #define INT_MIN (-2147483647 - 1)
71 
72 /* Maximum value for an object of type int */
73 #define INT_MAX (+2147483647)
74 
75 /* Maximum value for an object of type unsigned int */
76 #define UINT_MAX (+4294967295U)
77 
78 /* Minimum value for an object of type long */
79 #define LONG_MIN (-9223372036854775807L - 1L)
80 
81 /* Maximum value for an object of type long */
82 #define LONG_MAX (+9223372036854775807L)
83 
84 /* Maxiumum value for an object of type unsigned long */
85 #define ULONG_MAX (+18446744073709551615UL)
86 
87 #endif /* _LIMITS_H */
88 
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