[Bug fortran/55548] SYSTEM_CLOCK with integer(8) provides nanosecond resolution, but only microsecond precision (without -lrt)

[janus at gcc dot gnu.org]

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  <ja...@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  <ja...@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