* invoke.texi: Add docs for -Wfloat-equal warning.

From-SVN: r29723

gcc/ChangeLog

@@ -6,6 +6,7 @@ Thu Sep 30 00:13:27 1999  Dirk Zoller  <duz@rtsffm.com>
 	* c-typeck.c (build_binary_op): Conditionally warn
 	about equality tests of floating point types.
 	* toplev.c (documented_lan_options): Add -W[no-]float-equal.
+	* invoke.texi: Add docs for -Wfloat-equal warning.
 
 Wed Sep 29 23:43:39 1999  Jeffrey A Law  (law@cygnus.com)
 

gcc/invoke.texi

@@ -125,7 +125,7 @@ in the following sections.
 -Wconversion  -Werror  -Wformat
 -Wid-clash-@var{len}  -Wimplicit -Wimplicit-int 
 -Wimplicit-function-declaration  -Wimport
--Werror-implicit-function-declaration  -Winline
+-Werror-implicit-function-declaration  -Wfloat-equal -Winline
 -Wlarger-than-@var{len}  -Wlong-long
 -Wmain  -Wmissing-declarations  -Wmissing-noreturn
 -Wmissing-prototypes  -Wmultichar  -Wnested-externs  -Wno-import  
@@ -1389,6 +1389,9 @@ Warn when a declaration does not specify a type.
 Give a warning (or error) whenever a function is used before being
 declared.
 
+@item -Wfloat-equal
+Warn if floating point values are used in equality comparisons.
+
 @item -Wimplicit
 Same as @samp{-Wimplicit-int} and @samp{-Wimplicit-function-}@*
 @samp{declaration}.