From d8d07eff702b303b9458ac5622bdc42e5a0c1f93 Mon Sep 17 00:00:00 2001
From: unknown <kaa@polly.(none)>
Date: Sat, 1 Dec 2007 12:46:25 +0300
Subject: [PATCH] Fixed the build failure on Windows. It does not have trunc()
 defined in math.h, so we should not use it code.

---
 sql/field.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sql/field.cc b/sql/field.cc
index c604f04339c..1878797297f 100644
--- a/sql/field.cc
+++ b/sql/field.cc
@@ -5909,6 +5909,7 @@ int Field_str::store(double nr)
   uint length;
   uint local_char_length= field_length / charset()->mbmaxlen;
   double anr= fabs(nr);
+  bool fractional= (anr != floor(anr));
   int neg= (nr < 0.0) ? 1 : 0;
   uint max_length;
   int exp;
@@ -5937,7 +5938,7 @@ int Field_str::store(double nr)
     calculate the maximum number of significant digits if the 'f'-format
     would be used (+1 for decimal point if the number has a fractional part).
   */
-  digits= max(0, (int) max_length - (nr != trunc(nr)));
+  digits= max(0, (int) max_length - fractional);
   /*
     If the exponent is negative, decrease digits by the number of leading zeros
     after the decimal point that do not count as significant digits.