10564b1175
groff 1.23.0 added .MR to its -man macro package. The NEWS file states
that the inclusion of the macro "was prompted by its introduction to
Plan 9 from User Space's troff in August 2020." From d32deab it seems
that the name for Plan 9 from User Space's implementation was suggested
by groff maintainer G. Brandon Robinson.
Not sure if the intention was to make these definitions compatible, but
it would be nice if they were.
Currently, Plan 9 from User Space's .MR expects its second argument to
be parenthesized. groff's .MR does not. This results in extra
parentheses appearing in manual references when viewing Plan 9 from User
Space's manual pages on a system using groff.
45 lines
687 B
Groff
45 lines
687 B
Groff
.TH TIME 3
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.SH NAME
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time, nsec \- time in seconds and nanoseconds since epoch
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.SH SYNOPSIS
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.B #include <u.h>
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.br
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.B #include <libc.h>
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.PP
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.nf
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.B
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long time(long *tp)
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.PP
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.B
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vlong nsec(void)
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.SH DESCRIPTION
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Both
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.I time
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and
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.I nsec
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return the time since the epoch 00:00:00 GMT, Jan. 1, 1970.
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The return value of the former is in seconds and the latter in nanoseconds.
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For
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.IR time ,
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if
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.I tp
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is not zero then
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.BI * tp
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is also set to the answer.
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.SH SOURCE
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.B \*9/src/lib9/time.c
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.SH DIAGNOSTICS
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These functions set
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.IR errstr .
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.SH BUGS
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To avoid name conflicts with the underlying system,
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.I time
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and
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.I nsec
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are preprocessor macros defined as
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.I p9time
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and
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.IR p9nsec ;
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see
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.MR intro 3 .
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