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| author | Alejandro Colomar <colomar.6.4.3@gmail.com> | 2020-09-29 12:30:27 +0200 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2020-09-29 13:43:15 +0200 |
| commit | 76ea908ca8fb7843908816043b1ee79893272185 (patch) | |
| tree | a8462b2460186ba4035583e863cad6cd20fb7ed7 | |
| parent | c3ed59072e4fd247c7795ba36bb654d8cb5a7462 (diff) | |
| download | man-pages-76ea908ca8fb7843908816043b1ee79893272185.tar.gz | |
system_data_types.7: Add intN_t family of types
Signed-off-by: Alejandro Colomar <colomar.6.4.3@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
| -rw-r--r-- | man7/system_data_types.7 | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/man7/system_data_types.7 b/man7/system_data_types.7 index 0ce718b145..d859ea3c1f 100644 --- a/man7/system_data_types.7 +++ b/man7/system_data_types.7 @@ -380,6 +380,85 @@ See also the .I uintmax_t type in this page. .RE +.\"------------------------------------- intN_t -----------------------/ +.TP +.IR int N _t +.RS +.br +Include: +.IR <stdint.h> . +Alternatively, +.IR <inttypes.h> . +.PP +.IR int8_t ", " int16_t ", " int32_t ", " int64_t +.PP +A signed 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 +.RB [ INT N _MIN , +.BR INT N _MAX ], +substituting N by the appropriate number. +.PP +According to POSIX, +.IR int8_t ", " int16_t +and +.I int32_t +are required; +.I int64_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 int N _t +types for the +.BR printf (3) +family of functions +are expanded by macros of the forms +.BR PRId N +and +.BR PRIi N +(defined in +.IR <inttypes.h> ); +resulting for example in +.B %"PRId64" +or +.B %"PRIi64" +for printing +.I int64_t +values. +The length modifiers for the +.IR int N _t +types for the +.BR scanf (3) +family of functions +are expanded by macros of the forms +.BR SCNd N +and +.BR SCNi N, +(defined in +.IR <inttypes.h> ); +resulting for example in +.B %"SCNd8" +or +.B %"SCNi8" +for scanning +.I int8_t +values. +.PP +Conforming to: C99 and later; POSIX.1-2001 and later. +.PP +See also the +.IR __int128 , +.IR intmax_t , +.IR uint N _t , +.I uintmax_t +and +.I unsigned __int128 +types in this page. +.RE .\"------------------------------------- lconv ------------------------/ .TP .I lconv |