[sheet-prep-2 2/3] format: Use max width for over-max decimals in fmt_fix().

[Ben Pfaff]

In fmt_fix(), requesting more decimals than are possible did
not increase the width at all.  It makes better sense to use
the maximum width and maximum decimals for this case, so this
commit makes that change.
---
 src/data/format.c |   19 ++++++++-----------
 1 files changed, 8 insertions(+), 11 deletions(-)

diff --git a/src/data/format.c b/src/data/format.c
index 559ab66..3c407f4 100644
--- a/src/data/format.c
+++ b/src/data/format.c
@@ -516,18 +516,15 @@ fmt_fix (struct fmt_spec *fmt, bool for_input)
   step = fmt_step_width (fmt->type);
   fmt->w = ROUND_DOWN (fmt->w, step);
 
-  /* First, if FMT has more decimal places than allowed, attempt
-     to increase FMT's width until that number of decimal places
-     can be achieved. */
-  if (fmt->d > fmt_max_decimals (fmt->type, fmt->w, for_input))
+  /* If FMT has more decimal places than allowed, attempt to increase FMT's
+     width until that number of decimal places can be achieved. */
+  if (fmt->d > fmt_max_decimals (fmt->type, fmt->w, for_input)
+      && fmt_takes_decimals (fmt->type))
     {
-      int w;
-      for (w = fmt->w; w <= max_w; w++)
-        if (fmt_max_decimals (fmt->type, w, for_input) >= fmt->d)
-          {
-            fmt->w = w;
-            break;
-          }
+      int max_w = fmt_max_width (fmt->type, for_input);
+      for (; fmt->w < max_w; fmt->w++)
+        if (fmt->d <= fmt_max_decimals (fmt->type, fmt->w, for_input))
+          break;
     }
 
   /* Clamp decimals to those allowed by format and width. */
-- 
1.7.2.5