-U<macro> Undefine <macro>
Wabi
-C ObjC C++ ObjC++ Var(warn_abi) Warning
+C ObjC C++ ObjC++ LTO Var(warn_abi) Warning
Warn about things that will change when compiling with an ABI-compliant compiler
Wpsabi
-C ObjC C++ ObjC++ Var(warn_psabi) Init(1) Undocumented
+C ObjC C++ ObjC++ LTO Var(warn_psabi) Init(1) Undocumented
Waddress
C ObjC C++ ObjC++ Var(warn_address) Warning
Warn about stray tokens after #elif and #endif
Wenum-compare
-C++ ObjC++ Var(warn_enum_compare) Init(1) Warning
+C ObjC C++ ObjC++ Var(warn_enum_compare) Init(-1) Warning
Warn about comparison of different enum types
Werror
C ObjC C++ ObjC++ Warning
Warn about PCH files that are found but not used
+Wjump-misses-init
+C ObjC Var(warn_jump_misses_init) Init(-1) Warning
+Warn when a jump misses a variable initialization
+
+Wlogical-op
+C ObjC C++ ObjC++ Var(warn_logical_op) Init(0) Warning
+Warn when a logical operator is suspiciously always evaluating to true or false
+
Wlong-long
-C ObjC C++ ObjC++ Var(warn_long_long) Init(1) Warning
+C ObjC C++ ObjC++ Var(warn_long_long) Init(-1) Warning
Do not warn about using \"long long\" when -pedantic
Wmain
C ObjC C++ ObjC++ Warning
Warn about unrecognized pragmas
+Wunsuffixed-float-constants
+C ObjC Var(warn_unsuffixed_float_constants) Warning
+Warn about unsuffixed float constants
+
Wunused-macros
C ObjC C++ ObjC++ Warning
Warn about macros defined in the main file that are not used
+Wunused-result
+C ObjC C++ ObjC++ Var(warn_unused_result) Init(1) Warning
+Warn if a caller of a function, marked with attribute warn_unused_result, does not use its return value
+
Wvariadic-macros
C ObjC C++ ObjC++ Warning
Do not warn about using variadic macros when -pedantic
ObjC ObjC++ Joined
-fconst-string-class=<name> Use class <name> for constant strings
+fdeduce-init-list
+C++ ObjC++ Var(flag_deduce_init_list) Init(1)
+-fno-deduce-init-list disable deduction of std::initializer_list for a template type parameter from a brace-enclosed initializer-list
+
fdefault-inline
C++ ObjC++
Inline member functions by default