Welcome to little lamb

Code » limb » release » tree

[release] / src / doc / u64.h / u64.h.0.md 

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
% limb manual
% u64.h(0)
% limb 0.1.0
% 2023-07-24

# NAME

u64.h - 64bit unsigned integers

# SYNOPSIS

    #include <limb/u64.h>

# DESCRIPTION

This header defines functions allowing to work with 64bit unsigned integers.

## Constants

The following constants are defined :

: *U64_FMT*
:: Maximum length for a byte array that can hold an u64 value in decimal
:: representation, plus a NUL-terminating byte

: *U64_FMTG*
:: Same as *U64_FMT* but with thousand-separators

: *U64_BFMT*
:: Same as *U64_FMT* but for binary

: *U64_OFMT*
:: Same as *U64_FMT* but for octal

: *U64_XFMT*
:: Same as *U64_FMT* but for hexadecimal

## Functions

The following functions/macros are defined :

: [u64_be](3)
:: Convert a u64 number to big endian.

: [u64_le](3)
:: Convert a u64 number to little endian.

: [u64p_be](3)
:: Similar to [u64_be](3) but takes a pointer.

: [u64p_le](3)
:: Similar to [u64_le](3) but takes a pointer.

: [u64pa_be](3)
:: Similar to [u64p_be](3) but for an array of pointers.

: [u64pa_le](3)
:: Similar to [u64p_le](3) but for an array of pointers.

: [u64_pack](3)
:: Store a u64 number encoded in little endian.

: [u64_unpack](3)
:: Read a u64 number encoded in little endian.

: [u64_pack_big](3)
:: Store a u64 number encoded in big endian.

: [u64_unpack_big](3)
:: Read a u64 number encoded in big endian.

: [u64_pack_trim](3)
:: Store a 64 number encoded in little endian trimming "unneeded" bits.

: [u64_unpack_trim](3)
:: Read a u64 number encoded in little endian with "unneeded" bits trimmed.

: [u64_fmt](3)
:: Write a u64 number as decimal into a byte array.

: [u64_fmtg](3)
:: Write a u64 number as decimal, using coma as thousand separator, into a
:: byte array.

: [u64_fmt_generic](3)
:: Write a u64 number into a byte array, encoded in specified base and
:: optionally grouped using given separator.

: [u64_0fmt_generic](3)
:: Same as [u64_fmt_generic](3) but filling with given character if less than
:: given size.

: [u64_bfmt](3)
:: Similar to [u64_fmt](3) but as binary.

: [u64_ofmt](3)
:: Similar to [u64_fmt](3) but as octal.

: [u64_xfmt](3)
:: Similar to [u64_fmt](3) but as hexadecimal.

: [u64_0fmt](3)
:: Similar to [u64_fmt](3) but filling with zeroes if less than given size.

: [u64_0fmtg](3)
:: Similar to [u64_fmtg](3) but filling with zeroes if less than given size.

: [u64_0bfmt](3)
:: Similar to [u64_bfmt](3) but filling with zeroes if less than given size.

: [u64_0ofmt](3)
:: Similar to [u64_ofmt](3) but filling with zeroes if less than given size.

: [u64_0xfmt](3)
:: Similar to [u64_xfmt](3) but filling with zeroes if less than given size.

: [u64_scan](3)
:: Read a u64 value from a byte array.

: [u64_bscan](3)
:: Similar to [u64_scan](3) but for binary value.

: [u64_oscan](3)
:: Similar to [u64_scan](3) but for octal value.

: [u64_xscan](3)
:: Similar to [u64_scan](3) but for hexadecimal value.

: [u64_scan0](3)
:: Similar to [u64_scan](3) but expects a NUL-terminated string.

: [u64_bscan0](3)
:: Similar to [u64_bscan](3) but expects a NUL-terminated string.

: [u64_oscan0](3)
:: Similar to [u64_oscan](3) but expects a NUL-terminated string.

: [u64_xscan0](3)
:: Similar to [u64_xscan](3) but expects a NUL-terminated string.