/*
* This file is part of cparser.
- * Copyright (C) 2007-2008 Matthias Braun <matze@braunis.de>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
+ * Copyright (C) 2012 Matthias Braun <matze@braunis.de>
*/
#ifndef WARNING_H
#define WARNING_H
void set_warning_opt(const char *opt);
-typedef struct warning_t {
- bool aggregate_return:1; /**< Warn if any functions that return structures or unions are defined or called */
- bool attribute:1; /**< Warn if an unexpected `__attribute__' is used or function attributes applied to variables, etc. */
-#if 0 // TODO
- bool bad_function_cast:1; /**< Warn whenever a function call is cast to a non-matching type */
- bool cast_align:1; /**< Warn whenever a pointer is cast such that the required alignment of the target is increased */
-#endif
- bool cast_qual:1; /**< Warn whenever a pointer is cast so as to remove a type qualifier from the target type */
- bool char_subscripts:1; /**< Warn if an array subscript has the type 'char' */
- bool comment:1; /**< Warn whenever a comment-start sequence appears in a comment, or whenever a Backslash-Newline appears in a '//' comment. */
+void disable_all_warnings(void);
+
+void print_warning_opt_help(void);
+
+typedef enum warning_t {
+ WARN_ADDRESS, /**< Warn about suspicious uses of memory addresses */
+ WARN_AGGREGATE_RETURN, /**< Warn if any functions that return structures or unions are defined or called */
+ WARN_ATTRIBUTE, /**< Warn if an unexpected `__attribute__' is used or function attributes applied to variables, etc. */
#if 0 // TODO
- 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 */
- bool cpp_compat:1; /**< Warn about ISO C constructs that are outside of the common subset of ISO C and ISO C++. */
+ WARN_BAD_FUNCTION_CAST, /**< Warn whenever a function call is cast to a non-matching type */
+ WARN_CAST_ALIGN, /**< Warn whenever a pointer is cast such that the required alignment of the target is increased */
#endif
- bool declaration_after_statement:1; /**< Warn when a declaration is found after a statement in a block */
- bool deprecated_declarations:1; /* TODO implement for types */ /**< Warn about uses of functions, variables and types marked as deprecated by using the 'deprecated' attribute */
- bool div_by_zero:1; /**< Warn about compile-time integer division by zero */
- bool empty_statement:1; /**< Warn about empty statements, i.e. lone ';' */
+ WARN_CAST_QUAL, /**< Warn whenever a pointer is cast so as to remove a type qualifier from the target type */
+ WARN_CHAR_SUBSCRIPTS, /**< Warn if an array subscript has the type 'char' */
+ WARN_COMMENT, /**< Warn whenever a comment-start sequence appears in a comment, or whenever a Backslash-Newline appears in a '//' comment. */
+ WARN_CONVERSION, /**< 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 */
#if 0 // TODO
- bool endif_labels:1; /**< Warn whenever an '#else' or an '#endif' are followed by text */
+ WARN_CPP_COMPAT, /**< Warn about ISO C constructs that are outside of the common subset of ISO C and ISO C++. */
#endif
- bool fatal_errors:1; /**< First error stops the compilation */
- bool float_equal:1; /**< Warn if floating point values are used in equality comparisons */
- bool format:1; /**< Check printf-style format strings */
- bool implicit_function_declaration:1; /**< Warn whenever a function is used before being declared */
- bool implicit_int:1; /**< Warn when a declaration does not specify a type */
- bool init_self:1; /**< Warn about uninitialized variables which are initialized with themselves. */
+ WARN_DECLARATION_AFTER_STATEMENT, /**< Warn when a declaration is found after a statement in a block */
+ WARN_DEPRECATED_DECLARATIONS, /* TODO implement for types */ /**< Warn about uses of functions, variables and types marked as deprecated by using the 'deprecated' attribute */
+ WARN_DIV_BY_ZERO, /**< Warn about compile-time integer division by zero */
+ WARN_EMPTY_BODY, /**< Warn about an empty body of an if or else statement */
+ WARN_EMPTY_STATEMENT, /**< Warn about empty statements, i.e. lone ';' */
#if 0 // TODO
- bool inline:1; /**< Warn if a function can not be inlined and it was declared as inline */
- bool int_to_pointer_cast:1; /**< Warn if cast from integer to pointer of different size. */
+ WARN_ENDIF_LABELS, /**< Warn whenever an '#else' or an '#endif' are followed by text */
#endif
- bool long_long:1; /**< Warn if 'long long' type is used */
- bool main:1; /**< Warn if the type of 'main' is suspicious */
+ WARN_ERROR, /**< Treat warnings as errors */
+ WARN_FATAL_ERRORS, /**< First error stops the compilation */
+ WARN_FLOAT_EQUAL, /**< Warn if floating point values are used in equality comparisons */
+ WARN_FORMAT, /**< Check printf-style format strings */
+ WARN_IGNORED_QUALIFIERS, /**< Warn when type qualifiers are meaningless */
+ WARN_IMPLICIT_FUNCTION_DECLARATION, /**< Warn whenever a function is used before being declared */
+ WARN_IMPLICIT_INT, /**< Warn when a declaration does not specify a type */
#if 0 // TODO
- bool missing_braces:1; /**< Warn if an aggregate or union initializer is not fully bracketed */
+ WARN_INLINE, /**< Warn if a function can not be inlined and it was declared as inline */
+ WARN_INT_TO_POINTER_CAST, /**< Warn if cast from integer to pointer of different size. */
#endif
- bool missing_declarations:1; /**< Warn if a global function is defined without a previous declaration */
+ WARN_LONG_LONG, /**< Warn if 'long long' type is used */
+ WARN_MAIN, /**< Warn if the type of 'main' is suspicious */
#if 0 // TODO
- bool missing_field_initializers:1; /**< Warn if a structure's initializer has some fields missing. */
- bool missing_format_attribute:1; /**< If '-Wformat' is enabled, also warn about functions which might be candidates for 'format' attributes */
+ WARN_MISSING_BRACES, /**< Warn if an aggregate or union initializer is not fully bracketed */
#endif
- bool missing_noreturn:1; /**< Warn about functions which might be candidates for attribute 'noreturn' */
- bool missing_prototypes:1; /**< Warn if a global function is defined without a previous prototype declaration */
- bool multichar:1; /**< Warn if a multicharacter constant ('FOOF') is used. */
- bool nested_externs:1; /**< Warn if an 'extern' declaration is encountered within a function. */
- bool nonnull:1; /**< Warn about passing a null pointer for arguments marked nonnull. */
+ WARN_MISSING_DECLARATIONS, /**< Warn if a global function is defined without a previous declaration */
#if 0 // TODO
- bool old_style_definition:1; /**< Warn if an old-style function definition is used. */
- 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 */
- 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 */
- bool parentheses:1; /**< Warn if parentheses are omitted in certain contexts (assignment where truth value is expected, if-else-braces) */
+ WARN_MISSING_FIELD_INITIALIZERS, /**< Warn if a structure's initializer has some fields missing. */
+ WARN_MISSING_FORMAT_ATTRIBUTE, /**< If '-Wformat' is enabled, also warn about functions which might be candidates for 'format' attributes */
#endif
- bool pointer_arith:1; /**< Warn about anything that depends on the "size of" a function type or of 'void' */
+ WARN_MISSING_NORETURN, /**< Warn about functions which might be candidates for attribute 'noreturn' */
+ WARN_MISSING_PROTOTYPES, /**< Warn if a global function is defined without a previous prototype declaration */
+ WARN_MULTICHAR, /**< Warn if a multicharacter constant ('FOOF') is used. */
+ WARN_NESTED_EXTERNS, /**< Warn if an 'extern' declaration is encountered within a function. */
+ WARN_NONNULL, /**< Warn about passing a null pointer for arguments marked nonnull. */
+ WARN_OLD_STYLE_DEFINITION, /**< Warn if an old-style function definition is used. */
+ WARN_OTHER, /**< Warnings not covered by any other option */
+ WARN_PACKED, /**< Warn if a structure is given the packed attribute, but the packed attribute has no effect on the layout or size of the structure */
+ WARN_PADDED, /**< Warn if padding is included in a structure, either to align an element of the structure or to align the whole structure */
+ WARN_PARENTHESES, /**< Warn if parentheses are omitted in certain contexts (assignment where truth value is expected, if-else-braces) */
+ WARN_POINTER_ARITH, /**< Warn about anything that depends on the "size of" a function type or of 'void' */
#if 0 // TODO
- bool pointer_to_int_cast:1; /**< Warn if cast from pointer to integer of different size. */
+ WARN_POINTER_TO_INT_CAST, /**< Warn if cast from pointer to integer of different size. */
#endif
- bool redundant_decls:1; /**< Warn about redundant declarations */
- 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'. */
- bool s_are_errors:1; /**< Treat warnings as errors */
+ WARN_REDUNDANT_DECLS, /**< Warn about redundant declarations */
+ WARN_RETURN_TYPE, /* 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'. */
#if 0 // TODO
- bool sequence_point:1; /**< Warn about code that may have undefined semantics because of violations of sequence point rules */
+ WARN_SEQUENCE_POINT, /**< Warn about code that may have undefined semantics because of violations of sequence point rules */
#endif
- bool shadow:1; /**< Warn whenever a local variable shadows another local variable, parameter or global variable or whenever a built-in function is shadowed */
- 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 */
+ WARN_SHADOW, /**< Warn whenever a local variable shadows another local variable, parameter or global variable or whenever a built-in function is shadowed */
+ WARN_SHADOW_LOCAL,
+ WARN_SIGN_COMPARE, /**< Warn when a comparison between signed and unsigned values could produce an incorrect result when the signed value is converted to unsigned */
+ WARN_STRAY_SEMICOLON, /**< Warn about stray semicolons outside of functions */
#if 0 // TODO
- bool strict_aliasing:1; /**< Warn about code which might break the strict aliasing rules that the compiler is using for optimization. */
+ WARN_STRICT_ALIASING, /**< Warn about code which might break the strict aliasing rules that the compiler is using for optimization. */
#endif
- bool strict_prototypes:1; /**< Warn if a function declaration has an unspecified parameter list */
- bool switch_default:1; /**< Warn whenever a 'switch' statement does not have a 'default' case */
- 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? */
+ WARN_STRICT_PROTOTYPES, /**< Warn if a function declaration has an unspecified parameter list */
+ WARN_SWITCH_DEFAULT, /**< Warn whenever a 'switch' statement does not have a 'default' case */
+ WARN_SWITCH_ENUM, /**< 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? */
+ WARN_SYSTEM, /**< Show warnings in system headers. */
+ WARN_TRADITIONAL, /**< Warn about certain constructs that behave differently in traditional and ISO C */
#if 0 // TODO
- bool traditional:1; /**< Warn about certain constructs that behave differently in traditional and ISO C */
- bool undef:1; /**< Warn if an undefined identifier is evaluated in an '#if' directive */
- bool uninitialized:1; /**< Warn if an automatic variable is used without being initialized or if a variable may be clobbered by a 'setjmp' call. */
+ WARN_UNDEF, /**< Warn if an undefined identifier is evaluated in an '#if' directive */
#endif
- bool unknown_pragmas:1; /**< Warn when a #pragma directive is encountered which is not understood */
- bool unreachable_code:1; /**< Warn if the compiler detects that code will never be executed */
- bool unused_function:1; /**< Warn whenever a static function is declared but not defined or a non-inline static function is unused */
- bool unused_label:1; /**< Warn whenever a label is declared but not used */
- bool unused_parameter:1; /**< Warn whenever a function parameter is unused aside from its declaration */
- bool unused_value:1; /**< Warn whenever a statement computes a result that is explicitly not used */
- bool unused_variable:1; /**< Warn whenever a local variable or non-constant static variable is unused aside from its declaration */
- 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 */
+ WARN_UNINITIALIZED, /**< Warn if an automatic variable is used without being initialized or if a variable may be clobbered by a 'setjmp' call. */
+ WARN_UNKNOWN_PRAGMAS, /**< Warn when a #pragma directive is encountered which is not understood */
+ WARN_UNREACHABLE_CODE, /**< Warn if the compiler detects that code will never be executed */
+ WARN_UNUSED_FUNCTION, /**< Warn whenever a static function is declared but not defined or a non-inline static function is unused */
+ WARN_UNUSED_LABEL, /**< Warn whenever a label is declared but not used */
+ WARN_UNUSED_PARAMETER, /**< Warn whenever a function parameter is unused aside from its declaration */
+ WARN_UNUSED_VALUE, /**< Warn whenever a statement computes a result that is explicitly not used */
+ WARN_UNUSED_VARIABLE, /**< Warn whenever a local variable or non-constant static variable is unused aside from its declaration */
+ WARN_WRITE_STRINGS, /**< Give string constants the type 'const char[LENGTH]' so that copying the address of one into a 'char *' pointer will get a warning */
} warning_t;
-extern warning_t warning;
+typedef enum warn_state_t {
+ WARN_STATE_NONE = 0,
+ WARN_STATE_ON = 1U << 0,
+ WARN_STATE_ERROR = 1U << 1,
+ WARN_STATE_NO_ERROR = 1U << 2
+} warn_state_t;
+
+typedef struct warning_switch_t {
+ warn_state_t state;
+ char const* const name;
+} warning_switch_t;
+
+warning_switch_t const *get_warn_switch(warning_t);
+
+static inline bool is_warn_on(warning_t const warn)
+{
+ return get_warn_switch(warn)->state & WARN_STATE_ON;
+}
#endif
projects / cparser / blobdiff