2 * This file is part of cparser.
3 * Copyright (C) 2007-2008 Matthias Braun <matze@braunis.de>
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
25 void set_warning_opt(const char *opt);
27 typedef struct warning_t {
29 bool aggregate_return:1; /**< Warn if any functions that return structures or unions are defined or called */
30 bool bad_function_cast:1; /**< Warn whenever a function call is cast to a non-matching type */
32 bool attribute:1; /**< Warn if an unexpected `__attribute__' is used or function attributes applied to variables, etc. */
33 bool char_subscripts:1; /**< Warn if an array subscript has the type 'char' */
34 bool format:1; /**< Check printf-style format strings */
35 bool nonnull:1; /**< Warn about passing a null pointer for arguments marked nonnull */
37 bool cast_align:1; /**< Warn whenever a pointer is cast such that the required alignment of the target is increased */
38 bool cast_qual:1; /**< Warn whenever a pointer is cast so as to remove a type qualifier from the target type */
39 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 */
40 bool declaration_after_statement:1; /**< Warn when a declaration is found after a statement in a block */
42 bool deprecated_declarations:1; /* TODO implement for types */ /**< Warn about uses of functions, variables and types marked as deprecated by using the 'deprecated' attribute */
44 bool div_by_zero:1; /**< Warn about compile-time integer division by zero */
46 bool empty_statement:1; /**< Warn about empty statements, i.e. lone ';' */
48 bool endif_labels:1; /**< Warn whenever an '#else' or an '#endif' are followed by text */
50 bool fatal_errors:1; /**< First error stops the compilation */
51 bool float_equal:1; /**< Warn if floating point values are used in equality comparisons */
52 bool implicit_function_declaration:1; /**< Warn whenever a function is used before being declared */
53 bool implicit_int:1; /**< Warn when a declaration does not specify a type */
55 bool inline:1; /**< Warn if a function can not be inlined and it was declared as inline */
56 bool long_long:1; /**< Warn if 'long long' type is used */
58 bool main:1; /**< Warn if the type of 'main' is suspicious */
60 bool missing_braces:1; /**< Warn if an aggregate or union initializer is not fully bracketed */
62 bool missing_declarations:1; /**< Warn if a global function is defined without a previous declaration */
64 bool missing_format_attribute:1; /**< If '-Wformat' is enabled, also warn about functions which might be candidates for 'format' attributes */
65 bool missing_noreturn:1; /**< Warn about functions which might be candidates for attribute 'noreturn' */
67 bool missing_prototypes:1; /**< Warn if a global function is defined without a previous prototype declaration */
68 bool multichar:1; /**< Warn if a multicharacter constant ('FOOF') is used. */
70 bool nested_externs:1; /**< Warn if an 'extern' declaration is encountered within a function */
71 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 */
72 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 */
73 bool parentheses:1; /**< Warn if parentheses are omitted in certain contexts (assignment where truth value is expected, if-else-braces) */
74 bool pointer_arith:1; /**< Warn about anything that depends on the "size of" a function type or of 'void' */
76 bool redundant_decls:1; /**< Warn about redundant declarations */
77 bool return_type:1; /* TODO not fully implemented */ /**< 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'. */
78 bool s_are_errors:1; /**< Treat warnings as errors */
80 bool sequence_point:1; /**< Warn about code that may have undefined semantics because of violations of sequence point rules */
82 bool shadow:1; /**< Warn whenever a local variable shadows another local variable, parameter or global variable or whenever a built-in function is shadowed */
83 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 */
85 bool strict_aliasing:1; /**< Warn about code which might break the strict aliasing rules that the compiler is using for optimization. */
87 bool strict_prototypes:1; /**< Warn if a function declaration has an unspecified parameter list */
88 bool switch_default:1; /**< Warn whenever a 'switch' statement does not have a 'default' case */
90 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? */
91 bool traditional:1; /**< Warn about certain constructs that behave differently in traditional and ISO C */
92 bool undef:1; /**< Warn if an undefined identifier is evaluated in an '#if' directive */
93 bool uninitialized:1; /**< Warn if an automatic variable is used without being initialized or if a variable may be clobbered by a 'setjmp' call. */
95 bool unknown_pragmas:1; /**< Warn when a #pragma directive is encountered which is not understood */
96 bool unreachable_code:1; /**< Warn if the compiler detects that code will never be executed */
97 bool unused_function:1; /**< Warn whenever a static function is declared but not defined or a non-inline static function is unused */
98 bool unused_label:1; /**< Warn whenever a label is declared but not used */
99 bool unused_parameter:1; /**< Warn whenever a function parameter is unused aside from its declaration */
100 bool unused_value:1; /**< Warn whenever a statement computes a result that is explicitly not used */
101 bool unused_variable:1; /**< Warn whenever a local variable or non-constant static variable is unused aside from its declaration */
103 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 */
107 extern warning_t warning;
projects / cparser / blob