diff options
Diffstat (limited to 'gcc/c.opt')
| -rw-r--r-- | gcc/c.opt | 178 |
1 files changed, 89 insertions, 89 deletions
diff --git a/gcc/c.opt b/gcc/c.opt index 6d3fa88e1fe..624b10e9ede 100644 --- a/gcc/c.opt +++ b/gcc/c.opt @@ -113,23 +113,23 @@ C ObjC C++ ObjC++ Joined Separate -U<macro> Undefine <macro> Wabi -C++ ObjC++ Var(warn_abi) +C++ ObjC++ Var(warn_abi) Warning Warn about things that will change when compiling with an ABI-compliant compiler Wall -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Warning Enable most warning messages Wassign-intercept -ObjC ObjC++ Var(warn_assign_intercept) +ObjC ObjC++ Var(warn_assign_intercept) Warning Warn whenever an Objective-C assignment is being intercepted by the garbage collector Wbad-function-cast -C ObjC Var(warn_bad_function_cast) +C ObjC Var(warn_bad_function_cast) Warning Warn about casting functions to incompatible types Wc++-compat -C Var(warn_cxx_compat) +C Var(warn_cxx_compat) Warning Warn about C constructs that are not in the common subset of C and C++ Wc++0x-compat @@ -137,55 +137,55 @@ C++ ObjC++ Var(warn_cxx0x_compat) Warn about C++ constructs whose meaning differs between ISO C++ 1998 and ISO C++ 200x Wcast-qual -C ObjC C++ ObjC++ Var(warn_cast_qual) +C ObjC C++ ObjC++ Var(warn_cast_qual) Warning Warn about casts which discard qualifiers Wchar-subscripts -C ObjC C++ ObjC++ Var(warn_char_subscripts) +C ObjC C++ ObjC++ Var(warn_char_subscripts) Warning Warn about subscripts whose type is \"char\" Wclobbered -C ObjC C++ ObjC++ Var(warn_clobbered) Init(-1) +C ObjC C++ ObjC++ Var(warn_clobbered) Init(-1) Warning Warn about variables that might be changed by \"longjmp\" or \"vfork\" Wcomment -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Warning Warn about possibly nested block comments, and C++ comments spanning more than one physical line Wcomments -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Warning Synonym for -Wcomment Wconversion -C ObjC C++ ObjC++ Var(warn_conversion) +C ObjC C++ ObjC++ Var(warn_conversion) Warning Warn for implicit type conversions that may change a value Wctor-dtor-privacy -C++ ObjC++ Var(warn_ctor_dtor_privacy) +C++ ObjC++ Var(warn_ctor_dtor_privacy) Warning Warn when all constructors and destructors are private Wdeclaration-after-statement -C ObjC Var(warn_declaration_after_statement) +C ObjC Var(warn_declaration_after_statement) Warning Warn when a declaration is found after a statement Wdeprecated -C++ ObjC++ Var(warn_deprecated) Init(1) +C++ ObjC++ Var(warn_deprecated) Init(1) Warning Warn about deprecated compiler features Wdiv-by-zero -C ObjC C++ Var(warn_div_by_zero) Init(1) +C ObjC C++ Var(warn_div_by_zero) Init(1) Warning Warn about compile-time integer division by zero Weffc++ -C++ ObjC++ Var(warn_ecpp) +C++ ObjC++ Var(warn_ecpp) Warning Warn about violations of Effective C++ style rules Wempty-body -C ObjC C++ ObjC++ Var(warn_empty_body) Init(-1) +C ObjC C++ ObjC++ Var(warn_empty_body) Init(-1) Warning Warn about an empty body in an if or else statement Wendif-labels -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Warning Warn about stray tokens after #elif and #endif Werror @@ -193,53 +193,53 @@ C ObjC C++ ObjC++ ; Documented in common.opt Werror-implicit-function-declaration -C ObjC RejectNegative +C ObjC RejectNegative Warning Make implicit function declarations an error Wfloat-equal -C ObjC C++ ObjC++ Var(warn_float_equal) +C ObjC C++ ObjC++ Var(warn_float_equal) Warning Warn if testing floating point numbers for equality Wformat -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Warning Warn about printf/scanf/strftime/strfmon format string anomalies Wformat-extra-args -C ObjC C++ ObjC++ Var(warn_format_extra_args) +C ObjC C++ ObjC++ Var(warn_format_extra_args) Warning Warn if passing too many arguments to a function for its format string Wformat-nonliteral -C ObjC C++ ObjC++ Var(warn_format_nonliteral) +C ObjC C++ ObjC++ Var(warn_format_nonliteral) Warning Warn about format strings that are not literals Wformat-security -C ObjC C++ ObjC++ Var(warn_format_security) +C ObjC C++ ObjC++ Var(warn_format_security) Warning Warn about possible security problems with format functions Wformat-y2k -C ObjC C++ ObjC++ Var(warn_format_y2k) +C ObjC C++ ObjC++ Var(warn_format_y2k) Warning Warn about strftime formats yielding 2-digit years Wformat-zero-length -C ObjC Var(warn_format_zero_length) +C ObjC Var(warn_format_zero_length) Warning Warn about zero-length formats Wformat= -C ObjC C++ ObjC++ Joined +C ObjC C++ ObjC++ Joined Warning Winit-self -C ObjC C++ ObjC++ Var(warn_init_self) +C ObjC C++ ObjC++ Var(warn_init_self) Warning Warn about variables which are initialized to themselves Wimplicit -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Warning Wimplicit-function-declaration -C ObjC Var(mesg_implicit_function_declaration) Init(-1) +C ObjC Var(mesg_implicit_function_declaration) Init(-1) Warning Warn about implicit function declarations Wimplicit-int -C ObjC Var(warn_implicit_int) +C ObjC Var(warn_implicit_int) Warning Warn when a declaration does not specify a type Wimport @@ -247,211 +247,211 @@ C ObjC C++ ObjC++ Deprecated. This switch has no effect Wint-to-pointer-cast -C ObjC Var(warn_int_to_pointer_cast) Init(1) +C ObjC Var(warn_int_to_pointer_cast) Init(1) Warning Warn when there is a cast to a pointer from an integer of a different size Winvalid-offsetof -C++ ObjC++ Var(warn_invalid_offsetof) Init(1) +C++ ObjC++ Var(warn_invalid_offsetof) Init(1) Warning Warn about invalid uses of the \"offsetof\" macro Winvalid-pch -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Warning Warn about PCH files that are found but not used Wlong-long -C ObjC C++ ObjC++ Var(warn_long_long) Init(1) +C ObjC C++ ObjC++ Var(warn_long_long) Init(1) Warning Do not warn about using \"long long\" when -pedantic Wmain -C ObjC +C ObjC Warning Warn about suspicious declarations of \"main\" Wmissing-braces -C ObjC C++ ObjC++ Var(warn_missing_braces) +C ObjC C++ ObjC++ Var(warn_missing_braces) Warning Warn about possibly missing braces around initializers Wmissing-declarations -C ObjC C++ ObjC++ Var(warn_missing_declarations) +C ObjC C++ ObjC++ Var(warn_missing_declarations) Warning Warn about global functions without previous declarations Wmissing-field-initializers -C ObjC C++ ObjC++ Var(warn_missing_field_initializers) Init(-1) +C ObjC C++ ObjC++ Var(warn_missing_field_initializers) Init(-1) Warning Warn about missing fields in struct initializers Wmissing-format-attribute -C ObjC C++ ObjC++ Var(warn_missing_format_attribute) +C ObjC C++ ObjC++ Var(warn_missing_format_attribute) Warning Warn about functions which might be candidates for format attributes Wmissing-include-dirs -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Warning Warn about user-specified include directories that do not exist Wmissing-parameter-type -C ObjC Var(warn_missing_parameter_type) Init(-1) +C ObjC Var(warn_missing_parameter_type) Init(-1) Warning Warn about function parameters declared without a type specifier in K&R-style functions Wmissing-prototypes -C ObjC Var(warn_missing_prototypes) +C ObjC Var(warn_missing_prototypes) Warning Warn about global functions without prototypes Wmultichar -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Warning Warn about use of multi-character character constants Wnested-externs -C ObjC Var(warn_nested_externs) +C ObjC Var(warn_nested_externs) Warning Warn about \"extern\" declarations not at file scope Wnon-template-friend -C++ ObjC++ Var(warn_nontemplate_friend) Init(1) +C++ ObjC++ Var(warn_nontemplate_friend) Init(1) Warning Warn when non-templatized friend functions are declared within a template Wnon-virtual-dtor -C++ ObjC++ Var(warn_nonvdtor) +C++ ObjC++ Var(warn_nonvdtor) Warning Warn about non-virtual destructors Wnonnull -C ObjC Var(warn_nonnull) +C ObjC Var(warn_nonnull) Warning Warn about NULL being passed to argument slots marked as requiring non-NULL Wnormalized= -C ObjC C++ ObjC++ Joined +C ObjC C++ ObjC++ Joined Warning -Wnormalized=<id|nfc|nfkc> Warn about non-normalised Unicode strings Wold-style-cast -C++ ObjC++ Var(warn_old_style_cast) +C++ ObjC++ Var(warn_old_style_cast) Warning Warn if a C-style cast is used in a program Wold-style-declaration -C ObjC Var(warn_old_style_declaration) Init(-1) +C ObjC Var(warn_old_style_declaration) Init(-1) Warning Warn for obsolescent usage in a declaration Wold-style-definition -C ObjC Var(warn_old_style_definition) +C ObjC Var(warn_old_style_definition) Warning Warn if an old-style parameter definition is used Woverlength-strings -C ObjC C++ ObjC++ Var(warn_overlength_strings) Init(-1) +C ObjC C++ ObjC++ Var(warn_overlength_strings) Init(-1) Warning Warn if a string is longer than the maximum portable length specified by the standard Woverloaded-virtual -C++ ObjC++ Var(warn_overloaded_virtual) +C++ ObjC++ Var(warn_overloaded_virtual) Warning Warn about overloaded virtual function names Woverride-init -C ObjC Var(warn_override_init) Init(-1) +C ObjC Var(warn_override_init) Init(-1) Warning Warn about overriding initializers without side effects Wparentheses -C ObjC C++ ObjC++ Var(warn_parentheses) +C ObjC C++ ObjC++ Var(warn_parentheses) Warning Warn about possibly missing parentheses Wpmf-conversions -C++ ObjC++ Var(warn_pmf2ptr) Init(1) +C++ ObjC++ Var(warn_pmf2ptr) Init(1) Warning Warn when converting the type of pointers to member functions Wpointer-arith -C ObjC C++ ObjC++ Var(warn_pointer_arith) +C ObjC C++ ObjC++ Var(warn_pointer_arith) Warning Warn about function pointer arithmetic Wpointer-to-int-cast -C ObjC Var(warn_pointer_to_int_cast) Init(1) +C ObjC Var(warn_pointer_to_int_cast) Init(1) Warning Warn when a pointer is cast to an integer of a different size Wpragmas -C ObjC C++ ObjC++ Var(warn_pragmas) Init(1) +C ObjC C++ ObjC++ Var(warn_pragmas) Init(1) Warning Warn about misuses of pragmas Wprotocol -ObjC ObjC++ Var(warn_protocol) Init(1) +ObjC ObjC++ Var(warn_protocol) Init(1) Warning Warn if inherited methods are unimplemented Wredundant-decls -C ObjC C++ ObjC++ Var(warn_redundant_decls) +C ObjC C++ ObjC++ Var(warn_redundant_decls) Warning Warn about multiple declarations of the same object Wreorder -C++ ObjC++ Var(warn_reorder) +C++ ObjC++ Var(warn_reorder) Warning Warn when the compiler reorders code Wreturn-type -C ObjC C++ ObjC++ Var(warn_return_type) +C ObjC C++ ObjC++ Var(warn_return_type) Warning Warn whenever a function's return type defaults to \"int\" (C), or about inconsistent return types (C++) Wselector -ObjC ObjC++ Var(warn_selector) +ObjC ObjC++ Var(warn_selector) Warning Warn if a selector has multiple methods Wsequence-point -C ObjC C++ ObjC++ Var(warn_sequence_point) +C ObjC C++ ObjC++ Var(warn_sequence_point) Warning Warn about possible violations of sequence point rules Wsign-compare -C ObjC C++ ObjC++ Var(warn_sign_compare) Init(-1) +C ObjC C++ ObjC++ Var(warn_sign_compare) Init(-1) Warning Warn about signed-unsigned comparisons Wsign-promo -C++ ObjC++ Var(warn_sign_promo) +C++ ObjC++ Var(warn_sign_promo) Warning Warn when overload promotes from unsigned to signed Wstrict-null-sentinel -C++ ObjC++ +C++ ObjC++ Warning Warn about uncasted NULL used as sentinel Wstrict-prototypes -C ObjC Var(warn_strict_prototypes) +C ObjC Var(warn_strict_prototypes) Warning Warn about unprototyped function declarations Wstrict-selector-match -ObjC ObjC++ Var(warn_strict_selector_match) +ObjC ObjC++ Var(warn_strict_selector_match) Warning Warn if type signatures of candidate methods do not match exactly Wsynth -C++ ObjC++ Var(warn_synth) +C++ ObjC++ Var(warn_synth) Warning Warn when synthesis behavior differs from Cfront Wsystem-headers -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Warning Do not suppress warnings from system headers Wtraditional -C ObjC Var(warn_traditional) +C ObjC Var(warn_traditional) Warning Warn about features not present in traditional C Wtraditional-conversion -C ObjC Var(warn_traditional_conversion) +C ObjC Var(warn_traditional_conversion) Warning Warn of prototypes causing type conversions different from what would happen in the absence of prototype Wtrigraphs -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Warning Warn if trigraphs are encountered that might affect the meaning of the program Wundeclared-selector -ObjC ObjC++ Var(warn_undeclared_selector) +ObjC ObjC++ Var(warn_undeclared_selector) Warning Warn about @selector()s without previously declared methods Wundef -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Warning Warn if an undefined macro is used in an #if directive Wunknown-pragmas -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Warning Warn about unrecognized pragmas Wunused-macros -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Warning Warn about macros defined in the main file that are not used Wvariadic-macros -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Warning Do not warn about using variadic macros when -pedantic Wwrite-strings -C ObjC C++ ObjC++ Var(warn_write_strings) +C ObjC C++ ObjC++ Var(warn_write_strings) Warning In C++, nonzero means warn about deprecated conversion from string literals to `char *'. In C, similar warning, except that the conversion is of course not deprecated by the ISO C standard. Wpointer-sign -C ObjC Var(warn_pointer_sign) Init(-1) +C ObjC Var(warn_pointer_sign) Init(-1) Warning Warn when a pointer differs in signedness in an assignment ansi @@ -554,7 +554,7 @@ fguiding-decls C++ ObjC++ fhandle-exceptions -C++ ObjC++ +C++ ObjC++ Optimization fhonor-std C++ ObjC++ @@ -675,19 +675,19 @@ C++ ObjC++ Enable automatic template instantiation frtti -C++ ObjC++ +C++ ObjC++ Optimization Generate run time type descriptor information fshort-double -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Optimization Use the same size for double as for float fshort-enums -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Optimization Use the narrowest integer type possible for enumeration types fshort-wchar -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Optimization Force the underlying type for \"wchar_t\" to be \"unsigned short\" fsigned-bitfields @@ -720,7 +720,7 @@ fthis-is-variable C++ ObjC++ fthreadsafe-statics -C++ ObjC++ +C++ ObjC++ Optimization -fno-threadsafe-statics Do not generate thread-safe code for initializing local statics funsigned-bitfields |