further reversion of previously applied floating point stuff for expr2

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@74628 65c4cc65-6c06-0410-ace0-fbb531ad65f3

UPGRADE.txt

@@ -101,12 +101,6 @@ PBX Core:
   if your dialplan relies on the ability to 'run off the end' of an extension
   and wait for a new extension without using WaitExten() to accomplish that,
   you will need set autofallthrough to 'no' in your extensions.conf file.
-
-* The ast_expr2 stuff has been modified to handle floating-point numbers.
-  Numbers of the format D.D are now acceptable input for the expr parser, 
-  Where D is a string of base-10 digits. All math is now done in "long double",
-  if it is available on your compiler/architecture. This was half-way between
-  a bug-fix (because the MATH func returns fp by default), and an enhancement.
  
 Command Line Interface:
 

doc/channelvariables.txt

@@ -212,19 +212,19 @@ with equal precedence are grouped within { } symbols.
              an empty string or zero; otherwise, returns zero.
 
      expr1 {=, >, >=, <, <=, !=} expr2
-             Return the results of floating pt. comparison if both arguments are
-             numbers; otherwise, returns the results of string comparison
+             Return the results of integer comparison if both arguments are
+             integers; otherwise, returns the results of string comparison
              using the locale-specific collation sequence.  The result of each
              comparison is 1 if the specified relation is true, or 0 if the
              relation is false.
 
      expr1 {+, -} expr2
-             Return the results of addition or subtraction of 
+             Return the results of addition or subtraction of integer-valued
              arguments.
 
      expr1 {*, /, %} expr2
-             Return the results of multiplication, division, or
-             remainder of arguments. (floating point [long double if possible]).
+             Return the results of multiplication, integer division, or
+             remainder of integer-valued arguments.
 
      - expr1
             Return the result of subtracting expr1 from 0.
@@ -322,13 +322,10 @@ __________________________
 NUMBERS VS STRINGS
 --------------------------
 
-Tokens consisting only of numbers are converted to long doubles for
-most of the operators (80-128 bits, depending on the compiler/platform/etc). 
-This means that overflows can occur when the
+Tokens consisting only of numbers are converted to 64-bit numbers for
+most of the operators. This means that overflows can occur when the
 numbers get above 18 digits.  Warnings will appear in the logs in this
 case.
-If "long double" is not available, then "double" is used (usually 64 bit floating
-point numbers).
 ___________________________
 CONDITIONALS
 ---------------------------
@@ -487,10 +484,6 @@ of possible concern with "legacy" extension.conf files:
 
 9.  Unary operators '-' and '!' were made right associative.
 
-10. All arithmetic operations are now done in floating point (long double
-    if possible, plain double otherwise).
-
-
 --------------------------------------------------------
 DEBUGGING HINTS FOR $[  ]  EXPRESSIONS
 --------------------------------------------------------

utils/expr2.testinput

@@ -90,7 +90,3 @@ x != x
 3
 something
 043
-2.1+4.2
-1.500003+1.4999999999999898989898989898989898989889898
-1/4
-