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| author | Alejandro Colomar <colomar.6.4.3@gmail.com> | 2020-09-29 12:30:29 +0200 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2020-09-29 13:43:27 +0200 |
| commit | 1231520ca9ce62a83535e8db59bc6b419aa7125d (patch) | |
| tree | b13542b1743506c1b1346ba418a108c6cda89c9f /man7 | |
| parent | f30ba1fbcb997eb1cf303e6f4f920fa286494ada (diff) | |
| download | man-pages-1231520ca9ce62a83535e8db59bc6b419aa7125d.tar.gz | |
system_data_types.7: Add uintN_t family of types
Signed-off-by: Alejandro Colomar <colomar.6.4.3@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Diffstat (limited to 'man7')
| -rw-r--r-- | man7/system_data_types.7 | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/man7/system_data_types.7 b/man7/system_data_types.7 index d859ea3c1f..c1a9ea4305 100644 --- a/man7/system_data_types.7 +++ b/man7/system_data_types.7 @@ -1306,6 +1306,88 @@ See also the .I intmax_t type in this page. .RE +.\"------------------------------------- uintN_t ----------------------/ +.TP +.IR uint N _t +.RS +.br +Include: +.IR <stdint.h> . +Alternatively, +.IR <inttypes.h> . +.PP +.IR uint8_t ", " uint16_t ", " uint32_t ", " uint64_t +.PP +An unsigned integer type +of a fixed width of exactly N bits, +N being the value specified in its type name. +According to the C language standard, they shall be +capable of storing values in the range [0, +.BR UINT N _MAX ], +substituting N by the appropriate number. +.PP +According to POSIX, +.IR uint8_t ", " uint16_t +and +.I uint32_t +are required; +.I uint64_t +is only required in implementations that provide integer types +with width 64; +and all other types of this form are optional. +.PP +The length modifiers for the +.IR uint N _t +types for the +.BR printf (3) +family of functions +are expanded by macros of the forms +.BR PRIu N, +.BR PRIo N, +.BR PRIx N +and +.BR PRIX N +(defined in +.IR <inttypes.h> ); +resulting for example in +.B %"PRIu32" +or +.B %"PRIx32" +for printing +.I uint32_t +values. +The length modifiers for the +.IR uint N _t +types for the +.BR scanf (3) +family of functions +are expanded by macros of the forms +.BR SCNu N, +.BR SCNo N, +.BR SCNx N +and +.BR SCNX N +(defined in +.IR <inttypes.h> ); +resulting for example in +.B %"SCNu16" +or +.B %"SCNx16" +for scanning +.I uint16_t +values. +.PP +Conforming to: C99 and later; POSIX.1-2001 and later. +.PP +See also the +.IR __int128 , +.IR intmax_t , +.IR int N _t , +.I uintmax_t +and +.I unsigned __int128 +types in this page. +.RE .\"------------------------------------- va_list ----------------------/ .TP .I va_list |