Signed-off-by: Alejandro Colomar <colomar.6.4.3@xxxxxxxxx> --- man7/system_data_types.7 | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/man7/system_data_types.7 b/man7/system_data_types.7 index 5f9aa648f..3cf3f0ec9 100644 --- a/man7/system_data_types.7 +++ b/man7/system_data_types.7 @@ -1822,6 +1822,41 @@ and .I void * types in this page. .RE +.\"------------------------------------- unsigned __int128 ------------/ +.TP +.I unsigned __int128 +.RS +An unsigned integer type +of a fixed width of exactly 128 bits. +.PP +When using GCC, +it is supported only for targets where +the compiler is able to generate efficient code for 128-bit arithmetic. +.PP +Versions: +GCC 4.6.0 and later. +.PP +Conforming to: +This is a non-standard extension, present in GCC. +It is not standardized by the C language standard nor POSIX. +.PP +Notes: +This type is available without including any header. +.PP +Bugs: +It is not possible to express an integer constant of type +.I unsigned __int128 +in implementations where +.I unsigned long long +is less than 128 bits wide. +.PP +See also the +.IR __int128 , +.I uintmax_t +and +.IR uint N _t +types in this page. +.RE .\"------------------------------------- va_list ----------------------/ .TP .I va_list -- 2.28.0
