6 void set_warning_opt(const char *opt);
8 typedef struct warning_t {
10 bool aggregate_return:1; /* Warn if any functions that return structures or unions are defined or called */
11 bool bad_function_cast:1; /* Warn whenever a function call is cast to a non-matching type */
13 bool char_subscripts:1; /* Warn if an array subscript has the type 'char' */
14 bool check_format:1; /* Check printf-style format strings */
16 bool cast_align:1; /* Warn whenever a pointer is cast such that the required alignment of the target is increased */
17 bool cast_qual:1; /* Warn whenever a pointer is cast so as to remove a type qualifier from the target type */
18 bool conversion:1; /* Warn if a prototype causes a type conversion that is different from what would happen to the same argument in the absence of a prototype */
19 bool declaration_after_statement:1; /* Warn when a declaration is found after a statement in a block */
20 bool deprecated_declarations:1; /* Warn about uses of functions, variables and types marked as deprecated by using the 'deprecated' attribute */
21 bool div_by_zero:1; /* Warn about compile-time integer division by zero */
22 bool endif_labels:1; /* Warn whenever an '#else' or an '#endif' are followed by text */
24 bool fatal_errors:1; /* First error stops the compilation */
26 bool float_equal:1; /* Warn if floating point values are used in equality comparisons */
28 bool implicit_function_declaration:1; /* Warn whenever a function is used before being declared */
29 bool implicit_int:1; /* Warn when a declaration does not specify a type */
31 bool inline:1; /* Warn if a function can not be inlined and it was declared as inline */
32 bool long_long:1; /* Warn if 'long long' type is used */
33 bool main:1; /* Warn if the type of 'main' is suspicious */
34 bool missing_braces:1; /* Warn if an aggregate or union initializer is not fully bracketed */
36 bool missing_declarations:1; /* Warn if a global function is defined without a previous declaration */
38 bool missing_format_attribute:1; /* If '-Wformat' is enabled, also warn about functions which might be candidates for 'format' attributes */
39 bool missing_noreturn:1; /* Warn about functions which might be candidates for attribute 'noreturn' */
41 bool missing_prototypes:1; /* Warn if a global function is defined without a previous prototype declaration */
43 bool multichar:1; /* Warn if a multicharacter constant ('FOOF') is used. */
44 bool nested_externs:1; /* Warn if an 'extern' declaration is encountered within a function */
45 bool packed:1; /* Warn if a structure is given the packed attribute, but the packed attribute has no effect on the layout or size of the structure */
46 bool padded:1; /* Warn if padding is included in a structure, either to align an element of the structure or to align the whole structure */
47 bool parentheses:1; /* Warn if parentheses are omitted in certain contexts (assignment where truth value is expected, if-else-braces) */
48 bool pointer_arith:1; /* Warn about anything that depends on the "size of" a function type or of 'void' */
50 bool redundant_decls:1; /* Warn about redundant declarations */
52 bool return_type:1; /* Warn about function definitions with a return-type that defaults to 'int'. Also warn about any 'return' statement with no return-value in a function whose return-type is not 'void'. */
54 bool s_are_errors:1; /* Treat warnings as errors */
56 bool sequence_point:1; /* Warn about code that may have undefined semantics because of violations of sequence point rules */
57 bool shadow:1; /* Warn whenever a local variable shadows another local variable, parameter or global variable or whenever a built-in function is shadowed */
58 bool sign_compare:1; /* Warn when a comparison between signed and unsigned values could produce an incorrect result when the signed value is converted to unsigned */
59 bool strict_aliasing:1; /* Warn about code which might break the strict aliasing rules that the compiler is using for optimization. */
61 bool strict_prototypes:1; /* warn if a function declaration has an unspecified parameter list */
62 bool switch_default:1; /* Warn whenever a 'switch' statement does not have a 'default' case */
64 bool switch_enum:1; /* Warn about 'switch' statements with an enum as index type and missing case labels or case labels outside the enum range TODO has an alias -Wswitch? */
65 bool traditional:1; /* Warn about certain constructs that behave differently in traditional and ISO C */
66 bool undef:1; /* Warn if an undefined identifier is evaluated in an '#if' directive */
67 bool uninitialized:1; /* Warn if an automatic variable is used without being initialized or if a variable may be clobbered by a 'setjmp' call. */
69 bool unknown_pragmas:1; /* Warn when a #pragma directive is encountered which is not understood */
71 bool unreachable_code:1; /* Warn if the compiler detects that code will never be executed */
72 bool unused_function:1; /* Warn whenever a static function is declared but not defined or a non-inline static function is unused */
73 bool unused_label:1; /* Warn whenever a label is declared but not used */
74 bool unused_parameter:1; /* Warn whenever a function parameter is unused aside from its declaration */
75 bool unused_variable:1; /* Warn whenever a local variable or non-constant static variable is unused aside from its declaration */
77 bool unused_value:1; /* Warn whenever a statement computes a result that is explicitly not used */
79 bool write_strings:1; /* Give string constants the type 'const char[LENGTH]' so that copying the address of one into a 'char *' pointer will get a warning */
83 extern warning_t warning;
projects / cparser / blob