mirror of https://github.com/mkerrisk/man-pages
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>
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@ -1306,6 +1306,88 @@ See also the
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.I intmax_t
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type in this page.
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.RE
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.\"------------------------------------- uintN_t ----------------------/
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.TP
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.IR uint N _t
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.RS
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.br
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Include:
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.IR <stdint.h> .
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Alternatively,
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.IR <inttypes.h> .
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.PP
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.IR uint8_t ", " uint16_t ", " uint32_t ", " uint64_t
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.PP
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An unsigned integer type
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of a fixed width of exactly N bits,
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N being the value specified in its type name.
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According to the C language standard, they shall be
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capable of storing values in the range [0,
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.BR UINT N _MAX ],
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substituting N by the appropriate number.
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.PP
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According to POSIX,
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.IR uint8_t ", " uint16_t
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and
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.I uint32_t
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are required;
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.I uint64_t
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is only required in implementations that provide integer types
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with width 64;
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and all other types of this form are optional.
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.PP
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The length modifiers for the
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.IR uint N _t
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types for the
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.BR printf (3)
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family of functions
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are expanded by macros of the forms
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.BR PRIu N,
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.BR PRIo N,
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.BR PRIx N
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and
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.BR PRIX N
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(defined in
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.IR <inttypes.h> );
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resulting for example in
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.B %"PRIu32"
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or
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.B %"PRIx32"
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for printing
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.I uint32_t
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values.
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The length modifiers for the
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.IR uint N _t
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types for the
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.BR scanf (3)
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family of functions
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are expanded by macros of the forms
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.BR SCNu N,
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.BR SCNo N,
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.BR SCNx N
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and
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.BR SCNX N
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(defined in
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.IR <inttypes.h> );
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resulting for example in
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.B %"SCNu16"
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or
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.B %"SCNx16"
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for scanning
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.I uint16_t
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values.
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.PP
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Conforming to: C99 and later; POSIX.1-2001 and later.
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.PP
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See also the
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.IR __int128 ,
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.IR intmax_t ,
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.IR int N _t ,
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.I uintmax_t
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and
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.I unsigned __int128
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types in this page.
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.RE
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.\"------------------------------------- va_list ----------------------/
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.TP
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.I va_list
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