Mercurial > octave
view libinterp/corefcn/pr-flt-fmt.cc @ 24784:4d945f2e5914
eliminate output_max_field width; limit output precision (bug #53167)
* pr-flt-fmt.h, pr-flt-fmt.cc (Voutput_max_field_width,
output_max_field_width): Delete. Eliminate all uses.
(set_output_prec): Rename from set_output_prec_and_fw. Change all uses.
(Foutput_max_field_width): Always return 20. Don't do anything with
input. Document new behavior.
(Foutput_precision): Limit value to be in the range 0 to 16.
(class float_format): Always set width to 0.
* pr-output.h, pr-output.cc (pr_output_traits): New template.
(make_real_format): Limit output precision.
(octave_print_real_matrix_internal,
octave_print_real_diag_matrix_internal,
octave_print_complex_matrix_internal,
octave_print_complex_diag_matrix_internal): New template functions.
Use them to define float and double versions of octave_print_internal
for real and complex matrix and diag matrix functions.
(octave_print_internal): Define separate versions for float and float
complex N-d arrays.
(Fformat): Update doc string.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Wed, 21 Feb 2018 08:24:41 -0500 |
parents | 56f889d66b7c |
children | 0b9e7fcaab91 |
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/* Copyright (C) 1993-2017 John W. Eaton This file is part of Octave. Octave is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. Octave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <https://www.gnu.org/licenses/>. */ #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include "defun.h" #include "error.h" #include "pr-flt-fmt.h" #include "variables.h" // The precision of the numbers printed by the default output // routines. static int Voutput_precision = 5; int output_precision (void) { return Voutput_precision; } void set_output_prec (int prec) { Voutput_precision = prec; } DEFUN (output_max_field_width, , , doc: /* -*- texinfo -*- @deftypefn {} {} output_max_field_width This function is obsolete and will be removed from a future version of Octave. @end deftypefn */) { return octave_value (20); } DEFUN (output_precision, args, nargout, doc: /* -*- texinfo -*- @deftypefn {} {@var{val} =} output_precision () @deftypefnx {} {@var{old_val} =} output_precision (@var{new_val}) @deftypefnx {} {} output_precision (@var{new_val}, "local") Query or set the internal variable that specifies the minimum number of significant figures to display for numeric output. Note that regardless of the value set for @code{output_precision}, the number of digits of precision displayed is limited to 16 for double precision values and 7 for single precision values. When called from inside a function with the @qcode{"local"} option, the variable is changed locally for the function and any subroutines it calls. The original variable value is restored when exiting the function. @seealso{format, fixed_point_format} @end deftypefn */) { return SET_INTERNAL_VARIABLE_WITH_LIMITS (output_precision, 0, 16); }