2007-05-22 H.J. Lu <hongjiu.lu@intel.com>

[pf3gnuchains/gcc-fork.git] / gcc / c.opt

diff --git a/gcc/c.opt b/gcc/c.opt
index 61aaf82..63e2bda 100644 (file)
--- a/gcc/c.opt
+++ b/gcc/c.opt
@@ -124,6 +124,10 @@ Wall
 C ObjC C++ ObjC++ Warning
 Enable most warning messages
 
+Wtype-limits
+C ObjC C++ ObjC++ Var(warn_type_limits) Init(-1) Warning
+Warn if a comparison is always true or always false due to the limited range of the data type
+
 Wassign-intercept
 ObjC ObjC++ Var(warn_assign_intercept) Warning
 Warn whenever an Objective-C assignment is being intercepted by the garbage collector
@@ -164,6 +168,10 @@ Wconversion
 C ObjC C++ ObjC++ Var(warn_conversion) Warning
 Warn for implicit type conversions that may change a value
 
+Wsign-conversion
+C ObjC C++ ObjC++ Var(warn_sign_conversion) Init(-1)
+Warn for implicit type conversions between signed and unsigned integers
+
 Wctor-dtor-privacy
 C++ ObjC++ Var(warn_ctor_dtor_privacy) Warning
 Warn when all constructors and destructors are private
@@ -271,7 +279,7 @@ C ObjC C++ ObjC++ Var(warn_long_long) Init(1) Warning
 Do not warn about using \"long long\" when -pedantic
 
 Wmain
-C ObjC Warning
+C ObjC C++ ObjC++ Warning
 Warn about suspicious declarations of \"main\"
 
 Wmissing-braces
@@ -551,7 +559,7 @@ C++ ObjC++
 Scope of for-init-statement variables is local to the loop
 
 ffreestanding
-C ObjC
+C ObjC C++ ObjC++
 Do not assume that standard C libraries and \"main\" exist
 
 fgnu-keywords