# HG changeset patch
# User Markus Mützel <markus.muetzel@gmx.de>
# Date 1626276782 -7200
# Node ID dbc191149841f9456863b76b8c29bd7b5dbf9e08
# Parent  ca30a6c1acc36407cc542a6865a9d2472932a662
num2str.m: Also fix integer input with second input argument.

* scripts/general/num2str.m: Don't print integer input with a format string for
  floating point numbers. Add test with an integer that can't be represented in
  double precision.

diff -r ca30a6c1acc3 -r dbc191149841 scripts/general/num2str.m
--- a/scripts/general/num2str.m	Wed Jul 14 16:14:49 2021 +0200
+++ b/scripts/general/num2str.m	Wed Jul 14 17:33:02 2021 +0200
@@ -95,7 +95,11 @@
       if (ischar (arg))
         fmt = arg;
       elseif (isnumeric (arg) && isscalar (arg) && arg >= 0 && arg == fix (arg))
-        fmt = sprintf ("%%%d.%dg", arg+7, arg);
+        if (isfloat (x))
+          fmt = sprintf ("%%%d.%dg", arg+7, arg);
+        else
+          fmt = sprintf ("%%%dd", arg);
+        endif
       else
         error ("num2str: PRECISION must be a scalar integer >= 0");
       endif
@@ -225,6 +229,7 @@
 %!assert (num2str (complex (NA, 1)), "NA+1i")
 %!assert (num2str (complex (1, NA)), "1+NAi")
 %!assert (num2str (int64 (-flintmax ()) - 1), "-9007199254740993")
+%!assert (num2str (int64 (-flintmax ()) - 1, 18), "-9007199254740993")
 
 ## ND-arrays are concatenated in columns
 %!shared m, x