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Subject: [Bug fortran/55548] SYSTEM_CLOCK with integer(8) provides nanosecond resolution, but only microsecond precision (without -lrt)
Date: Mon, 03 Dec 2012 22:07:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55548

--- Comment #2 from janus at gcc dot gnu.org 2012-12-03 22:06:45 UTC ---
Author: janus
Date: Mon Dec  3 22:06:41 2012
New Revision: 194105

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=194105
Log:
2012-12-03  Janus Weil  <janus@gcc.gnu.org>

    PR fortran/55548
    * intrinsics/system_clock.c (gf_gettime_mono): Add argument 'tck',
    which returns the clock resolution.
    (system_clock_4): Get resolution from gf_gettime_mono, but limit to
    1000/s.
    (system_clock_8): Get resolution from gf_gettime_mono.

2012-12-03  Janus Weil  <janus@gcc.gnu.org>

    PR fortran/55548
    * intrinsic.texi (SYSTEM_CLOCK): Update documentation of SYSTEM_CLOCK.

Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/intrinsic.texi
    trunk/libgfortran/ChangeLog
    trunk/libgfortran/intrinsics/system_clock.c