(float_to_string): Fix type mismatch and simplify.

1 files changed, 11 insertions, 9 deletions

diff --git a/src/print.c b/src/print.c
index 3609684c640..1e83d1907e8 100644
--- a/src/print.c
+++ b/src/print.c
@@ -668,19 +668,21 @@ float_to_string (buf, data)
       /* Check the width specification.  */
       width = -1;
       if ('0' <= *cp && *cp <= '9')
-        for (width = 0; (*cp >= '0' && *cp <= '9'); cp++)
-          width = (width * 10) + (*cp - '0');
+        {
+          width = 0;
+          do
+            width = (width * 10) + (*cp++ - '0');
+          while (*cp >= '0' && *cp <= '9');
+
+          /* A precision of zero is valid only for %f.  */
+          if (width > DBL_DIG
+              || (width == 0 && *cp != 'f'))
+            goto lose;
+        }
 
       if (*cp != 'e' && *cp != 'f' && *cp != 'g')
         goto lose;
 
-      /* A precision of zero is valid for %f; everything else requires
-         at least one.  Width may be omitted anywhere.  */
-      if (width != -1
-          && (width < (*cp != 'f')
-              || width > DBL_DIG))
-        goto lose;
-
       if (cp[1] != 0)
         goto lose;