Some Windows-related fixes to make Microsoft compilers happy. This is for bug #28128.

include/m_string.h:
  Reduced the number of elements in log_10[] and log_01[] to not exceed DBL_MAX.
sql/field.cc:
  Avoid the warning on Windows.
strings/strtod.c:
  Reduced the number of elements in log_10[] and log_01[] to not exceed DBL_MAX.

include/m_string.h

@@ -106,8 +106,8 @@ extern char NEAR _dig_vec_upper[];
 extern char NEAR _dig_vec_lower[];
 
 /* Defined in strtod.c */
-extern const double log_10[310];
-extern const double log_01[310];
+extern const double log_10[309];
+extern const double log_01[309];
 
 #ifdef BAD_STRING_COMPILER
 #define strmov(A,B)  (memccpy(A,B,0,INT_MAX)-1)

sql/field.cc

@@ -3676,7 +3676,7 @@ int Field_float::store(const char *from,uint len,CHARSET_INFO *cs)
 int Field_float::store(double nr)
 {
   int error= truncate(&nr, FLT_MAX);
-  float j= nr;
+  float j= (float)nr;
 
 #ifdef WORDS_BIGENDIAN
   if (table->s->db_low_byte_first)

strings/strtod.c

@@ -63,7 +63,7 @@ const double log_10[] = {
   1e270, 1e271, 1e272, 1e273, 1e274, 1e275, 1e276, 1e277, 1e278, 1e279,
   1e280, 1e281, 1e282, 1e283, 1e284, 1e285, 1e286, 1e287, 1e288, 1e289,
   1e290, 1e291, 1e292, 1e293, 1e294, 1e295, 1e296, 1e297, 1e298, 1e299,
-  1e300, 1e301, 1e302, 1e303, 1e304, 1e305, 1e306, 1e307, 1e308, 1e309
+  1e300, 1e301, 1e302, 1e303, 1e304, 1e305, 1e306, 1e307, 1e308
 };
 
 const double log_01[] = {
@@ -97,7 +97,7 @@ const double log_01[] = {
   1e-270,1e-271,1e-272,1e-273,1e-274,1e-275,1e-276,1e-277,1e-278,1e-279,
   1e-280,1e-281,1e-282,1e-283,1e-284,1e-285,1e-286,1e-287,1e-288,1e-289,
   1e-290,1e-291,1e-292,1e-293,1e-294,1e-295,1e-296,1e-297,1e-298,1e-299,
-  1e-300,1e-301,1e-302,1e-303,1e-304,1e-305,1e-306,1e-307,1e-308,1e-309
+  1e-300,1e-301,1e-302,1e-303,1e-304,1e-305,1e-306,1e-307,1e-308
 };
 
 /*