Clang diagnostics
CppDepend operates all Clang diagnostics which are easy to browse using CQlinq. The following CQLinq query matches all Clang diagnostics:
warnif count >0
from issue in ImportedIssues where issue.ToolName=="Clang"
select new { issue, issue.Type, issue.FilePath, issue.BeginLine }
from issue in ImportedIssues where issue.ToolName=="Clang"
select new { issue, issue.Type, issue.FilePath, issue.BeginLine }
The diagnostics could be filtred by their types and here is the list of all Clang warnings and their associated description:
Lexer
Diagnostic type |
Message |
| warn_pp_ambiguous_macro | "ambiguous expansion of macro %0" |
| backslash_newline_space | "backslash and newline separated by space" |
| warn_nested_block_comment | "'/*' within block comment" |
| escaped_newline_block_comment_end | "escaped newline between */ characters at block comment end" |
| pp_disabled_macro_expansion | "disabled expansion of recursive macro" |
| warn_header_guard | "%0 is used as a header guard here, followed by #define of a different macro" |
| warn_mmap_unknown_attribute | "unknown attribute '%0'" |
| warn_no_newline_eof | "no newline at end of file" |
| null_in_file | "null character ignored" |
| null_in_char | "null character(s) preserved in character literal" |
| null_in_string | "null character(s) preserved in string literal" |
| trigraph_ignored_block_comment | "ignored trigraph would end block comment" |
| trigraph_ignored | "trigraph ignored" |
| warn_pp_undef_identifier | "%0 is not defined, evaluates to 0" |
| warn_ucn_escape_surrogate | "universal character name refers to a surrogate character" |
| warn_ucn_not_valid_in_c89 | "universal character names are only valid in C99 or C++ treating as '\' followed by identifier" |
| warn_ucn_escape_no_digits | "\%0 used with no following hex digits treating as '\' followed by identifier" |
| pp_macro_not_used | "macro is not used" |
Parser
Warning Flag |
Message |
| warn_auto_storage_class | "'auto' storage class specifier is redundant and incompatible with C++11" |
| warn_deprecated_register | "'register' storage class specifier is deprecated" |
| warn_extra_semi_after_mem_fn_def | "extra '' after member function definition" |
| warn_omp_extra_tokens_at_eol | "extra tokens at the end of '#pragma omp %0' are ignored" |
| warn_duplicate_declspec | "duplicate '%0' declaration specifier" |
| warn_dangling_else | "add explicit braces to avoid dangling else" |
| warn_attribute_no_decl | "attribute %0 ignored, because it is not attached to a declaration" |
| warn_microsoft_dependent_exists | "dependent %select{__if_not_exists|__if_exists}0 declarations are ignored" |
| warn_semicolon_before_method_body | "semicolon before method body is ignored" |
| warn_pragma_omp_ignored | "unexpected '#pragma omp ...' in program" |
| warn_static_inline_explicit_inst_ignored | "ignoring '%select{static |
Semantic
Warning Flag |
Message |
| warn_abstract_vbase_init | "initializer for virtual base class %0 of abstract class %1 will never be used" |
| warn_temporary_array_to_pointer_decay | "pointer is initialized by a temporary array, which will be destroyed at the end of the full_expression" |
| warn_ptr_arith_precedes_bounds | "the pointer decremented by %0 refers before the beginning of the array" |
| warn_ptr_arith_exceeds_bounds | "the pointer incremented by %0 refers past the end of the array (that contains %1 element%s2)" |
| warn_typecheck_zero_static_array_size | "'static' has no effect on zero_length arrays" |
| warn_static_array_too_small | "array argument is too small contains %0 elements, callee requires at least %1" |
| warn_array_index_precedes_bounds | "array index %0 is before the beginning of the array" |
| warn_array_index_exceeds_bounds | "array index %0 is past the end of the array (which contains %1 element%s2)" |
| warn_not_in_enum_assignment | "integer constant not in range of enumerated type %0" |
| warn_atomic_property_rule | "writable atomic property %0 cannot pair a synthesized %select{getter |
| warn_unknown_attribute_ignored | "unknown attribute %0 ignored" |
| warn_auto_var_is_id | "'auto' deduced as 'id' in declaration of %0" |
| warn_mismatched_availability | "availability does not match previous declaration" |
| warn_mismatched_availability_override_unavail | "overriding method cannot be unavailable on %0 when its overridden method is available" |
| warn_bad_function_cast | "cast from function call of type %0 to non_matching type %1" |
| warn_impcast_bitfield_precision_constant | "implicit truncation from %2 to bitfield changes value from %0 to %1" |
| warn_impcast_bool_to_null_pointer | "initialization of pointer of type %0 to null from a constant boolean " "expression" |
| warn_implicit_decl_requires_sysheader | "declaration of built-in function '%1' requires inclusion of the header %0" |
| warn_explicit_instantiation_inline_0x | "explicit instantiation cannot be 'inline'" |
| warn_explicit_instantiation_must_be_global_0x | "explicit instantiation of %0 must occur at global scope" |
| warn_explicit_instantiation_out_of_scope_0x | "explicit instantiation of %0 not in a namespace enclosing %1" |
| warn_explicit_instantiation_unqualified_wrong_namespace_0x | "explicit instantiation of %q0 must occur in namespace %1" |
| warn_init_list_constant_narrowing | "constant expression evaluates to %0 which cannot be narrowed to type %1 in C++11" |
| warn_init_list_variable_narrowing | "non_constant_expression cannot be narrowed from type %0 to %1 in initializer list in C++11" |
| warn_init_list_type_narrowing | "type %0 cannot be narrowed to %1 in initializer list in C++11" |
| warn_cast_align | "cast from %0 to %1 increases required alignment from %2 to %3" |
| warn_subscript_is_char | "array subscript is of type 'char'" |
| warn_logical_instead_of_bitwise | "use of logical '%0' with constant operand" |
| warn_impcast_complex_scalar | "implicit conversion discards imaginary component: %0 to %1" |
| warn_impcast_float_precision | "implicit conversion loses floating_point precision: %0 to %1" |
| warn_impcast_integer_precision | "implicit conversion loses integer precision: %0 to %1" |
| warn_impcast_floating_point_to_bool | "implicit conversion turns floating_point number into integer: %0 to %1" |
| warn_impcast_vector_scalar | "implicit conversion turns vector to scalar: %0 to %1" |
| warn_template_arg_negative | "non_type template argument with value '%0' converted to '%1' for unsigned template parameter of type %2" |
| warn_unreachable_default | "default label in switch which covers all enumeration values" |
| warn_default_atomic_custom_getter_setter | "atomic by default property %0 has a user defined %select{getter |
| warn_bind_ref_member_to_temporary | "binding reference %select{|subobject of }1member %0 to a temporary value" |
| warn_bind_ref_member_to_parameter | "binding reference member %0 to stack allocated parameter %1" |
| warn_init_ptr_member_to_parameter_addr | "initializing pointer member %0 with the stack address of parameter %1" |
| warn_dangling_std_initializer_list | "array backing the initializer list will be destroyed at the end of %select{the full_expression |
| warn_delete_incomplete | "deleting pointer to incomplete type %0 may cause undefined behavior" |
| warn_delete_non_virtual_dtor | "delete called on %0 that has virtual functions but non_virtual destructor" |
| warn_delete_abstract_non_virtual_dtor | "delete called on %0 that is abstract but has non_virtual destructor" |
| warn_increment_bool | "incrementing expression of type bool is deprecated" |
| warn_access_decl_deprecated | "access declarations are deprecated use using declarations instead" |
| warn_deprecated_copy_operation | "definition of implicit copy {constructor|assignment operator} for %0 is deprecated because it has a user-declared" |
| warn_exception_spec_deprecated | "dynamic exception specifications are deprecated" |
| warn_division_by_zero | "division by zero is undefined" |
| warn_remainder_by_zero | "remainder by zero is undefined" |
| warn_duplicate_enum_values | "element %0 has been implicitly assigned %1 which another element has been assigned" |
| warn_duplicate_method_decl | "multiple declarations of method %0 found and ignored" |
| warn_empty_for_body | "for loop has empty body" |
| warn_empty_if_body | "if statement has empty body" |
| warn_empty_range_based_for_body | "range_based for loop has empty body" |
| warn_empty_switch_body | "switch statement has empty body" |
| warn_empty_while_body | "while loop has empty body" |
| warn_comparison_of_mixed_enum_types | "comparison of two values with different enumeration types%diff{ ($ and $) |
| warn_impcast_different_enum_types | "implicit conversion from enumeration type %0 to different enumeration type %1" |
| warn_exit_time_destructor | "declaration requires an exit_time destructor" |
| warn_arc_strong_pointer_objc_pointer | "method parameter of type %0 with no explicit ownership" |
| warn_extern_init | "'extern' variable has an initializer" |
| warn_floatingpoint_eq | "comparing floating point with == or != is unsafe" |
| warn_printf_data_arg_not_used | "data argument not used by format string" |
| warn_format_invalid_conversion | "invalid conversion specifier '%0'" |
| warn_format_nonliteral | "format string is not a string literal" |
| warn_format_nonliteral_noargs | "format string is not a string literal (potentially insecure)" |
| warn_empty_format_string | "format string is empty" |
| warn_format_conversion_argument_type_mismatch | "format specifies type %0 but the argument has type %1" |
| warn_printf_format_string_contains_null_char | "format string contains '\0' within the string body" |
| warn_missing_format_string | "format string missing" |
| warn_format_string_is_wide_literal | "format string should not be a wide string" |
| warn_printf_incomplete_specifier | "incomplete format specifier" |
| warn_format_invalid_positional_specifier | "invalid position specified for %select{field width |
| warn_format_nonsensical_length | "length modifier '%0' results in undefined behavior or no effect with '%1' conversion specifier" |
| warn_printf_insufficient_data_args | "more '%%' conversions than data arguments" |
| warn_scanf_scanlist_incomplete | "no closing ']' for '%%[' in scanf format string" |
| warn_format_zero_positional_specifier | "position arguments in format strings start counting at 1 (not 0)" |
| warn_scanf_nonzero_width | "zero field width in scanf format string is unused" |
| warn_global_constructor | "declaration requires a global constructor" |
| warn_global_destructor | "declaration requires a global destructor" |
| warn_using_directive_in_header | "using namespace directive in global context in header" |
| warn_implicit_function_decl | "implicit declaration of function %0" |
| warn_builtin_unknown | "use of unknown builtin %0" |
| warn_undef_method_impl | "method definition for %0 not found" |
| warn_using_decl_constructor_ellipsis | "inheriting constructor does not inherit ellipsis" |
| warn_initializer_overrides | "initializer overrides prior initialization of this subobject" |
| warn_subobject_initializer_overrides | "subobject initialization overrides initialization of other fields within its enclosing subobject" |
| warn_int_to_pointer_cast | "cast to %1 from smaller integer type %0" |
| warn_int_to_void_pointer_cast | "cast to %1 from smaller integer type %0" |
| warn_noreturn_function_has_return_expr | "function declared 'noreturn' should not return" |
| warn_parameter_size | "%0 is a large (%1 bytes) pass_by_value argument pass it by reference instead ?" |
| warn_return_value_size | "return value of %0 is a large (%1 bytes) pass_by_value object pass it by reference instead ?" |
| warn_impcast_literal_float_to_integer | "implicit conversion from %0 to %1 changes value from %2 to %3" |
| warn_float_overflow | "magnitude of floating_point constant too large for type %0 maximum is %1" |
| warn_float_underflow | "magnitude of floating_point constant too small for type %0 minimum is %1" |
| warn_conflicting_param_types | "conflicting parameter types in implementation of %0: %1 vs %2" |
| warn_conflicting_ret_types | "conflicting return type in implementation of %0: %1 vs %2" |
| warn_namespace_member_extra_qualification | "extra qualification on member %0" |
| warn_missing_braces | "suggest braces around initialization of subobject" |
| warn_missing_field_initializers | "missing field '%0' initializer" |
| warn_missing_method_return_type | "method has no return type specified defaults to 'id'" |
| warn_missing_variable_declarations | "no previous extern declaration for non_static variable %0" |
| warn_vbase_moved_multiple_times | "defaulted move assignment operator of %0 will move assign virtual base class %1 multiple times" |
| warn_non_literal_null_pointer | "expression which evaluates to zero treated as a null pointer constant of " "type %0" |
| warn_non_pod_vararg_with_format_string | "cannot pass %select{non-POD|non-trivial}0 object of type %1 to variadic" |
| warn_cannot_pass_non_pod_arg_to_vararg | "cannot pass object of %select{non-POD|non-trivial}0 type %1 through variadic" |
| warn_non_virtual_dtor | "%0 has virtual functions but non_virtual destructor" |
| warn_null_arg | "null passed to a callee that requires a non-null argument" |
| warn_null_in_comparison_operation | "comparison between NULL and non_pointer %select{(%1 and NULL) |
| warn_null_in_arithmetic_operation | "use of NULL in arithmetic operation" |
| warn_indirection_through_null | "indirection of non_volatile null pointer will be deleted, not trap" |
| warn_overaligned_type | "type %0 requires %1 bytes of alignment and the default allocator only guarantees %2 bytes" |
| warn_overloaded_virtual | "%q0 hides overloaded virtual %select{function |
| warn_overriding_method_mismatch | "conflicting parameter types in declaration of %0%diff{: $ vs $ |
| warn_overriding_method_mismatch | "conflicting parameter types in declaration of %0: %1 vs %2" |
| warn_overriding_method_mismatch | "conflicting return type in declaration of %0%diff{: $ vs $ |
| warn_overriding_method_mismatch | "conflicting return type in declaration of %0: %1 vs %2" |
| warn_overriding_method_mismatch | "conflicting variadic declaration of method and its implementation" |
| warn_packed | "packed attribute is unnecessary for %0" |
| warn_padded | "padding %select{struct |
| warn_padded | "padding %select{struct |
| warn_padded | "padding size of %0 with %1 %select{byte |
| warn_parentheses_equality | "equality comparison with extraneous parentheses" |
| warn_parentheses | "%0 has lower precedence than %1 %1 will be evaluated first" |
| warn_parentheses | "operator '?:' has lower precedence than '%0' '%0' will be evaluated first" |
| warn_parentheses | "using the result of an assignment as a condition without parentheses" |
| warn_pointer_arith | "subtraction of pointers to type %0 of zero size has undefined behavior" |
| warn_predefined_identifier_outside_function | "predefined identifier is only valid inside function" |
| warn_private_extern | "use of private_extern on a declaration may not produce external symbol private to the linkage unit and is deprecated" |
| warn_protocol_property_synthesis_ambiguity | "property of type %0 was selected for synthesis" |
| warn_protocol | "method %0 in protocol not implemented" |
| warn_readonly_iboutlet_property | "readonly IBOutlet property '%0' when auto_synthesized may not work correctly with 'nib' loader" |
| warn_readonly_setter_attrs | "property attributes '%0' and '%1' are mutually exclusive" |
| warn_receiver_expr | "receiver type %0 is not 'id' or interface pointer, consider casting it to 'id'" |
| warn_receiver_forward_class | "receiver type %0 for instance message is a forward declaration" |
| warn_receiver_is_weak, DefaultIgnore | "weak %select{receiver |
| warn_reinterpret_base_class | "'reinterpret_cast' %select{from |
| warn_reorder | "%select{field |
| warn_requires_super_attribute | "%0 attribute cannot be applied to %select{methods in protocols |
| warn_return_stack_address | "address of stack memory associated with local variable %0 returned" |
| warn_return_stack_address | "reference to stack memory associated with local variable %0 returned" |
| warn_return_stack_address | "returning address of label, which is local" |
| warn_return_stack_address | "returning address of local temporary object" |
| warn_return_stack_address | "returning reference to local temporary object" |
| warn_return_type_c_linkage | "%0 has C_linkage specified, but returns incomplete type %1 which could be incompatible with C" |
| warn_return_type_c_linkage | "%0 has C_linkage specified, but returns user_defined type %1 which is incompatible with C" |
| warn_return_type | "control may reach end of non_void function" |
| warn_return_type | "control reaches end of non_void function" |
| warn_return_type | "non_void %select{function |
| warn_section | "section does not match previous declaration" |
| warn_selector_type_mismatch | "multiple selectors named %0 found" |
| warn_selector | "creating selector for nonexistent method %0" |
| warn_self_assign_field | "assigning %select{field |
| warn_self_assign | "explicitly assigning a variable of type %0 to itself" |
| warn_sentinel | "missing sentinel in %select{function call |
| warn_sentinel | "not enough variable arguments in %0 declaration to fit a sentinel" |
| warn_shadow_ivar | "local declaration of %0 hides instance variable" |
| warn_shadow | "declaration shadows a %select{" "local variable |
| warn_shift_count_negative | "shift count is negative" |
| warn_shift_count_overflow | "shift count = width of type" |
| warn_shift_overflow | "signed shift result (%0) requires %1 bits to represent, but %2 only has %3 bits" |
| warn_shift_sign_overflow, DefaultIgnore | "signed shift result (%0) sets the sign bit of the shift expression's type (%1) and becomes negative" |
| warn_shorten_64_to_32 | "implicit conversion loses integer precision: %0 to %1" |
| warn_sign_compare | "comparison of integers of different signs: %0 and %1" |
| warn_sign_conversion | "implicit conversion changes signedness: %0 to %1" |
| warn_sign_conversion | "operand of ? changes signedness: %0 to %1" |
| warn_sizeof_array_argument | "sizeof on array function parameter will return size of %0 instead of %1" |
| warn_sizeof_array_decay | "sizeof on pointer operation will return size of %0 instead of %1" |
| warn_sizeof_pointer_memaccess | "'%0' call operates on objects of type %1 while the size is based on a " "different type %2" |
| warn_sizeof_pointer_memaccess | "argument to 'sizeof' in %0 call is the same pointer type %1 as the %select{destination |
| warn_sometimes_uninitialized | "variable %0 is %select{used |
| warn_static_local_in_inline | "non_constant static local variable in inline function may be different in different files" |
| warn_static_self_init | "static variable %0 is suspiciously used within its own initialization" |
| warn_strict_selector_match | "multiple methods named %0 found" |
| warn_string_compare | "result of comparison against %select{a string literal |
| warn_string_conversion | "implicit conversion turns string literal into bool: %0 to %1" |
| warn_string_plus_char | "adding %0 to a string pointer does not append to the string" |
| warn_string_plus_int | "adding %0 to a string does not append to the string" |
| warn_strlcpy_strlcat_size | "size argument in %0 call appears to be size of the source expected the size of the destination" |
| warn_strncat_size | "size argument in 'strncat' call appears " "to be size of the source" |
| warn_strncat_size | "the value of the size argument in 'strncat' is too large, might lead to a " "buffer overflow" |
| warn_strncat_size | "the value of the size argument to 'strncat' is wrong" |
| warn_super_class_method_mismatch | "method parameter type %diff{$ does not match super class method parameter type $ |
| warn_switch_enum | "%0 enumeration values not explicitly handled in switch: %1, %2, %3..." |
| warn_switch_enum | "enumeration value %0 not explicitly handled in switch" |
| warn_switch_enum | "enumeration values %0 and %1 not explicitly handled in switch" |
| warn_switch_enum | "enumeration values %0, %1, and %2 not explicitly handled in switch" |
| warn_switch | "%0 enumeration values not handled in switch: %1, %2, %3..." |
| warn_switch | "case value not in enumerated type %0" |
| warn_switch | "enumeration value %0 not handled in switch" |
| warn_switch | "enumeration values %0 and %1 not handled in switch" |
| warn_switch | "enumeration values %0, %1, and %2 not handled in switch" |
| warn_switch | "overflow converting case value to switch condition type (%0 to %1)" |
| warn_tautological_compare | "%select{self_ |
| warn_tautological_compare | "comparison of %0 unsigned%select{ |
| warn_tautological_compare | "comparison of unsigned%select{ |
| warn_tautological_constant_out_of_range_compare | "comparison of constant %0 with expression of type %1 is always %select{false |
| warn_thread_safety_analysis | "%select{reading |
| warn_thread_safety_analysis | "%select{reading |
| warn_thread_safety_analysis | "%select{reading |
| warn_thread_safety_analysis | "%select{reading |
| warn_thread_safety_analysis | "calling function '%0' requires %select{shared |
| warn_thread_safety_analysis | "cannot call function '%0' while mutex '%1' is locked" |
| warn_thread_safety_analysis | "cannot resolve lock expression" |
| warn_thread_safety_analysis | "expecting mutex '%0' to be locked at start of each loop" |
| warn_thread_safety_analysis | "expecting mutex '%0' to be locked at the end of function" |
| warn_thread_safety_analysis | "locking '%0' that is already locked" |
| warn_thread_safety_analysis | "mutex '%0' is locked exclusively and shared in the same scope" |
| warn_thread_safety_analysis | "mutex '%0' is not locked on every path through here" |
| warn_thread_safety_analysis | "mutex '%0' is still locked at the end of function" |
| warn_thread_safety_analysis | "unlocking '%0' that was not locked" |
| warn_thread_safety_attributes | "%0 attribute can only be applied in a context annotated with 'lockable' attribute" |
| warn_thread_safety_attributes | "%0 attribute only applies to %select{fields and global variables |
| warn_thread_safety_attributes | "%0 attribute requires arguments that are class type or point to class type type here is '%1'" |
| warn_thread_safety_attributes | "%0 attribute requires arguments whose type is annotated with 'lockable' attribute type here is '%1'" |
| warn_thread_safety_attributes | "'%0' only applies to pointer types type here is %1" |
| warn_thread_safety_attributes | "ignoring %0 attribute because its argument is invalid" |
| warn_thread_safety_beta | "Thread safety beta warning." |
| warn_thread_safety_precise | "%select{reading |
| warn_thread_safety_precise | "%select{reading |
| warn_thread_safety_precise | "calling function '%0' requires %select{shared |
| warn_type_safety | "argument type %0 doesn't match specified '%1' type tag %select{that requires %3 |
| warn_type_safety | "specified %0 type tag requires a null pointer" |
| warn_type_safety | "this type tag was not designed to be used with this function" |
| warn_undeclared_selector | "undeclared selector %0 did you mean %1?" |
| warn_undeclared_selector | "undeclared selector %0" |
| warn_undefined_inline | "inline function %q0 is not defined" |
| warn_undefined_internal | "%select{function |
| warn_undefined_reinterpret_cast | "dereference of type %1 that was reinterpret_cast from type %0 has undefined behavior" |
| warn_undefined_reinterpret_cast | "reinterpret_cast from %0 to %1 has undefined behavior" |
| warn_uninitialized | "block pointer variable %0 is uninitialized when captured by block" |
| warn_uninitialized | "field %0 is uninitialized when used here" |
| warn_uninitialized | "reference %0 is not yet bound to a value when used here" |
| warn_uninitialized | "reference %0 is not yet bound to a value when used within its own initialization" |
| warn_uninitialized | "variable %0 is uninitialized when %select{used here |
| warn_uninitialized | "variable %0 is uninitialized when used within its own initialization" |
| warn_unneeded_internal_declaration | "%select{function |
| warn_unneeded_internal_declaration | "'static' function %0 declared in header file should be declared 'static inline'" |
| warn_unneeded_member_function | "member function %0 is not needed and will not be emitted" |
| warn_unreachable_code, DefaultIgnore | "will never be executed" |
| warn_unsequenced | "multiple unsequenced modifications to %0" |
| warn_unsequenced | "unsequenced modification and access to %0" |
| warn_unsupported_friend | "dependent nested name specifier '%0' for friend class declaration is not supported turning off access control for %1" |
| warn_unsupported_friend | "dependent nested name specifier '%0' for friend template declaration is not supported ignoring this friend declaration" |
| warn_unsupported_visibility | "target does not support 'protected' visibility using 'default'" |
| warn_unused_comparison | "%select{equality |
| warn_unused_const_variable | "unused variable %0" |
| warn_unused_exception_parameter | "unused exception parameter %0" |
| warn_unused_function | "unused function %0" |
| warn_unused_label | "unused label %0" |
| warn_unused_member_function | "unused member function %0" |
| warn_unused_parameter | "unused parameter %0" |
| warn_unused_private_field | "private field %0 is not used" |
| warn_unused_property_ivar | "ivar %0 which backs the property is not referenced in this property's accessor" |
| warn_unused_result | "ignoring return value of function declared with warn_unused_result attribute" |
| warn_unused_value | "expression result unused should this cast be to 'void'?" |
| warn_unused_value | "expression result unused" |
| warn_unused_value | "ignoring return value of function declared with %0 attribute" |
| warn_unused_variable | "unused variable %0" |
| warn_unused_volatile_lvalue | "expression result unused assign into a variable to force a volatile load" |
| warn_used_but_marked_unused | "%0 was marked unused but was used" |
| warn_user_defined_literals | "user_defined literal suffixes not starting with '_' are reserved%select{ no literal will invoke this operator |
| warn_varargs | "'va_start' has undefined behavior with reference types" |
| warn_varargs | "second argument to 'va_arg' is of promotable type %0 this va_arg has undefined behavior because arguments will be promoted to %1" |
| warn_varargs | "second parameter of 'va_start' not last named argument" |
| warn_vector_conversion | "incompatible vector types "%select{\%diff{assigning to $ from $ |
| warn_vexing_parse | "empty parentheses interpreted as a function declaration" |
| warn_vexing_parse | "parentheses were disambiguated as a function declaration" |
| warn_visibility | "declaration of %0 will not be visible outside of this function" |
| warn_visibility | "redefinition of %0 will not be visible outside of this function" |
| warn_vla | "variable length array used" |
| warn_weak_template_vtables | "explicit template instantiation %0 will emit a vtable in every translation unit" |
| warn_weak_vtables | "%0 has no out_of_line virtual method definitions its vtable will be emitted in every translation unit" |
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