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From: | John W. Eaton |
Subject: | [Octave-bug-tracker] [bug #53167] format long doesn't adjust precision to 7 digits when displaying single() values |
Date: | Mon, 19 Feb 2018 19:31:21 -0500 (EST) |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0 |
Follow-up Comment #5, bug #53167 (project octave): The following is essentially what Octave does now when you set output_precision to 75: #include <cmath> #include <iomanip> #include <iostream> int main (void) { std::cout.flags (std::ios::showpoint); std::cout << std::setprecision (70) << std::setw (75) << M_PI << std::endl; return 0; } On my system, this prints: 3.141592653589793115997963468544185161590576171875000000000000000000000 I believe this is the same as #include <math.h> #include <stdio.h> int main (void) { printf ("%80.75f\n", M_PI); return 0; } Maybe it's stupid, but when these format functions were originally written for Octave, I think the aim was to allow this kind of formatting. _______________________________________________________ Reply to this item at: <http://savannah.gnu.org/bugs/?53167> _______________________________________________ Message sent via/by Savannah http://savannah.gnu.org/
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