Improve performance of isfield from linear time to constant time (bug #58105) Patch author: Anonymous in Bug #58105 Comment #7 https://savannah.gnu.org/bugs/index.php?58105#comment7 The isfield function was taking time proportional to the number of fields in a struct to determine whether something was a member or not. With this change, isfield performance becomes constant irrespective of the number of fields, speeding up performance by over 200X, and also allowing the use of struct as a hashmap if the user desires. ov-base.h: Add new isfield function declaration ov-base.cc: Add new isfield function definition ov-struct.h: Add new isfield function definitions ov-struct.cc: Do not call map_value ov.h: Add new isfield function definition

EXTRA_DIST += \
  %reldir%/module.mk \
  %reldir%/ax_blas.m4 \
  %reldir%/ax_compare_version.m4 \
  %reldir%/ax_cxx_compile_stdcxx.m4 \
  %reldir%/ax_lapack.m4 \
  %reldir%/ax_openmp.m4 \
  %reldir%/ax_pthread.m4 \
  %reldir%/gnulib-cache.m4 \
  %reldir%/libtool.m4 \
  %reldir%/ltoptions.m4 \
  %reldir%/ltsugar.m4 \
  %reldir%/ltversion.m4 \
  %reldir%/lt~obsolete.m4 \
  %reldir%/octave_blas.m4 \
  %reldir%/pkg.m4