# Table of All GCC Warnings

This table collects all gcc warnings used with C++ not enabled by some other option (e.g. `-Wall`) and indicates the first gcc version the warning appeared in if it's later than gcc 4.6.

It was generated from the files `gcc/{common,c-family/c}.opt` in `basepoints/gcc-11-2851-g050fc8b27a8` commit of gcc source tree using [show-gcc-warnings script](https://www.tt-solutions.com/en/portfolio/gcc_warnings).

See also the table of the [warnings not enabled](https://hackmd.io/@VZ/gcc-warnings) by some other option.

| Warning | Version | Enabled by |
|---------|:-------:|:----------:|
|`abi`|
|`abi-tag`|4.8
|`abi=`|5.1
|`address`||all
|`address-of-packed-member`|9.1|default
|`aggregate-return`|
|`aggressive-loop-optimizations`|4.8|default
|`aligned-new=`|7.1|all
|`all`||all
|`alloc-size-larger-than=`|7.1|all
|`alloc-zero`|7.1
|`alloca`|7.1
|`alloca-larger-than=`|7.1
|`arith-conversion`|10.1
|`array-bounds`||all
|`array-bounds=`|5.1|all
|`attribute-alias`|8.1|default
|`attribute-alias=`|9.1|default
|`attribute-warning`|9.1|default
|`attributes`||default
|`bool-compare`|5.1|all
|`bool-operation`|7.1|all
|`builtin-declaration-mismatch`|7.1|default
|`builtin-macro-redefined`||default
|`cannot-profile`|9.1|default
|`cast-align`|
|`cast-align=strict`|8.1
|`cast-function-type`|8.1|extra
|`cast-qual`|
|`catch-value=`|8.1|all
|`char-subscripts`||all
|`chkp`|5.1|all
|`class-conversion`|9.1|default
|`class-memaccess`|8.1
|`clobbered`||extra
|`comma-subscript`|10.1
|`comment`||all
|`conditionally-supported`|4.9
|`conversion`|
|`conversion-null`||default
|`coverage-mismatch`||default
|`cpp`||default
|`ctad-maybe-unsupported`|11.1|
|`ctor-dtor-privacy`|
|`dangling-else`|7.1|parentheses
|`date-time`|4.9
|`delete-incomplete`|4.9|default
|`delete-non-virtual-dtor`|4.7|all
|`deprecated`||default
|`deprecated-copy`|9.1
|`deprecated-copy-dtor`|9.1
|`deprecated-declarations`||default
|`deprecated-enum-enum-conversion`|11.1|
|`deprecated-enum-float-conversion`|11.1|
|`disabled-optimization`|
|`div-by-zero`||default
|`double-promotion`|
|`duplicated-branches`|7.1
|`duplicated-cond`|6.1
|`empty-body`||extra
|`endif-labels`||default
|`enum-compare`||all
|`expansion-to-defined`|7.1|extra || pedantic
|`extra`||extra
|`extra-semi`|8.1
|`float-conversion`|4.9|conversion
|`float-equal`|
|`format`|
|`format-contains-nul`||format=
|`format-diag`|10.1|format=
|`format-extra-args`||format=
|`format-nonliteral`||format=
|`format-overflow=`|7.1|format=
|`format-security`||format=
|`format-signedness`|5.1
|`format-truncation=`|7.1|format=
|`format-zero-length`|4.7|format=
|`format=`|4.8|all
|`frame-address`|6.1|all
|`frame-larger-than=`|
|`free-nonheap-object`|4.7|default
|`hsa`|6.1|default
|`if-not-aligned`|8.1|default
|`ignored-attributes`|6.1|default
|`ignored-qualifiers`||extra
|`implicit-fallthrough=`|7.1|extra
|`inaccessible-base`|10.1|default
|`inherited-variadic-ctor`|4.8|default
|`init-list-lifetime`|9.1|default
|`init-self`||all
|`inline`|
|`int-in-bool-context`|7.1|all
|`int-to-pointer-cast`||default
|`invalid-imported-macros`|11.1
|`invalid-memory-model`|4.7|default
|`invalid-offsetof`||default
|`invalid-pch`|
|`larger-than=`|
|`literal-suffix`|4.8|default
|`logical-not-parentheses`|5.1|all
|`logical-op`|6.1
|`long-long`|
|`lto-type-mismatch`|6.1|default
|`main`||all pedantic
|`maybe-uninitialized`|4.7|uninitialized
|`memset-elt-size`|7.1|all
|`memset-transposed-args`|5.1|all
|`misleading-indentation`|6.1|all
|`mismatched-tags`|10.1
|`missing-attributes`|8.1|all
|`missing-braces`||all
|`missing-declarations`|
|`missing-field-initializers`||extra
|`missing-format-attribute`|
|`missing-include-dirs`|
|`missing-noreturn`|
|`missing-profile`|9.1|default
|`mudflap`||default
|`multichar`|
|`multiple-inheritance`|6.1
|`multistatement-macros`|8.1|all
|`namespaces`|6.1
|`narrowing`|4.7|all
|`noexcept`|
|`noexcept-type`|7.1
|`non-template-friend`||default
|`non-virtual-dtor`|
|`nonnull`|4.7|format= all
|`nonnull-compare`|6.1|all
|`normalized=`|
|`null-dereference`|6.1
|`odr`|5.1|default
|`old-style-cast`|
|`openmp-simd`|4.9|all
|`overflow`||default
|`overlength-strings`||pedantic
|`overloaded-virtual`|
|`packed`|
|`packed-bitfield-compat`|
|`packed-not-aligned`|8.1|all
|`padded`|
|`parentheses`||all
|`pedantic`|4.8|pedantic
|`pessimizing-move`|9.1
|`placement-new=`|6.1
|`pmf-conversions`||default
|`pointer-arith`||pedantic
|`pointer-compare`|7.1|default
|`pragmas`||default
|`prio-ctor-dtor`|9.1|default
|`redundant-decls`|
|`redundant-move`|9.1|extra
|`redundant-tags`|10.1
|`register`|7.1
|`reorder`||all
|`restrict`|7.1
|`return-local-addr`|4.8|default
|`return-type`||all
|`scalar-storage-order`|6.1|default
|`sequence-point`||all
|`shadow`|
|`shadow=compatible-local`|7.1|shadow=local
|`shadow=local`|7.1|shadow
|`shift-count-negative`|5.1|default
|`shift-count-overflow`|5.1|default
|`shift-negative-value`|6.1
|`shift-overflow=`|6.1
|`sign-compare`||extra
|`sign-conversion`||conversion
|`sign-promo`|
|`sized-deallocation`|5.1|extra
|`sizeof-array-argument`|5.1|default
|`sizeof-pointer-div`|8.1|all
|`sizeof-pointer-memaccess`|5.1|all
|`stack-protector`|
|`stack-usage=`|4.7
|`strict-aliasing`|
|`strict-aliasing=`||all
|`strict-null-sentinel`|
|`strict-overflow`|
|`strict-overflow=`||all
|`string-compare`|10.1
|`stringop-overflow=`|7.1
|`stringop-truncation`|8.1
|`subobject-linkage`|6.1|default
|`suggest-attribute=cold`|8.1
|`suggest-attribute=const`|
|`suggest-attribute=format`|4.8
|`suggest-attribute=malloc`|8.1
|`suggest-attribute=noreturn`|
|`suggest-attribute=pure`|
|`suggest-final-methods`|5.1
|`suggest-final-types`|5.1
|`suggest-override`|5.1
|`switch`||all
|`switch-bool`|5.1|default
|`switch-default`|
|`switch-enum`|
|`switch-outside-range`|10.1|default
|`switch-unreachable`|7.1|default
|`sync-nand`||default
|`synth`|
|`system-headers`|
|`tautological-compare`|6.1|all
|`templates`|6.1
|`terminate`|6.1|default
|`trampolines`|
|`trigraphs`||all
|`type-limits`||extra
|`undef`|
|`uninitialized`||extra
|`unknown-pragmas`||all
|`unreachable-code`|
|`unsafe-loop-optimizations`|
|`unused`||all
|`unused-but-set-parameter`||unused && extra
|`unused-but-set-variable`||unused
|`unused-const-variable=`|6.1|unused-variable
|`unused-function`||unused
|`unused-label`||unused
|`unused-local-typedefs`|4.7|unused
|`unused-macros`|
|`unused-parameter`||unused && extra
|`unused-result`||default
|`unused-value`||unused
|`unused-variable`||unused
|`useless-cast`|4.8
|`varargs`|4.8|default
|`variadic-macros`||default
|`vector-operation-performance`|4.7
|`virtual-inheritance`|6.1
|`virtual-move-assign`|4.8|default
|`vla`|
|`vla-larger-than=`|7.1
|`volatile`|10.1
|`volatile-register-var`||all
|`write-strings`|
|`zero-as-null-pointer-constant`|4.7
|`zero-length-bounds`|10.1|all