Chapter 6 Command-Line Options for Diagnostic Messages
Remarks
This option also gives progress and version information.
6.13 -version
Displays version, configuration, and build data.
Syntax
-v[ersion]
6.14 -timing
Shows the amount of time that the tool used to perform an action.
Syntax
-timing
6.15 -warnings
Specifies which warning messages the command-line tool issues. This command is global.
Syntax
-w[arnings] keyword [,...]
The options for keyword
are: off
Turns off all warning messages. Passed to all tools. Equivalent to
#pragma warning off
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-warnings
on
Turns on most warning messages. Passed to all tools. Refer
Table 6-1
for a list of warning messages turned on by the
-w[arnings] on
command.
Equivalent to
#pragma warning on most
Turns on most warnings.
all
Turns on almost all warnings and require prototypes.
full
Turns on all warning messages and require prototypes. This option is likely to generate spurious warnings.
-warnings full
NOTE
should be used before using any other options that affect warnings. For example, use
-warnings full -warnings noanyptrintconv
instead of
-warnings noanyptrintconv -warnings full.
[no]cmdline
Passed to all tools.
[no]err[or] | [no]iserr[or]
Treats warnings as errors. Passed to all tools. Equivalent to
#pragma warning_errors
[no]pragmas | [no]illpragmas
Issues warning messages on invalid pragmas. Enabled when most
is used. Equivalent to
#pragma warn_illpragma
[no]empty[decl]
Issues warning messages on empty declarations. Enabled when most
is used. Equivalent to
#pragma warn_emptydecl
[no]possible | [no]unwanted
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Issues warning messages on possible unwanted effects. Enabled when most
is used.
Equivalent to
#pragma warn_possunwanted
[no]unusedarg
Issues warning messages on unused arguments. Enabled when most
is used. Equivalent to
#pragma warn_unusedarg
[no]unusedvar
Issues warning messages on unused variables. Enabled when most
is used. Equivalent to
#pragma warn_unusedvar
[no]unused
Same as
-w [no]unusedarg,[no]unusedvar
Enabled when most
is used.
[no]extracomma | [no]comma
Issues warning messages on extra commas in enumerations. The compiler ignores terminating commas in enumerations when compiling source code that conforms to the
ISO/IEC 9899-1999 ("C99") standard. Enabled when most
is used. Equivalent to
#pragma warn_extracomma
[no]extended
Extended error checking. Enabled when most
is used. Equivalent to either:
#pragma extended_errorcheck
[no]hidevirtual | [no]hidden[virtual]
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-warnings
Issues warning messages on hidden virtual functions. Enabled when most
is used.
Equivalent to
#pragma warn_hidevirtual
[no]implicit[conv]
Issues warning messages on implicit arithmetic conversions. Enabled when all
is used.
Implies
-warn impl_float2int,impl_signedunsigned
[no]impl_int2float
Issues warning messages on implicit integral to floating conversions. Enabled when all
is used. Equivalent to
#pragma warn_impl_i2f_conv
[no]impl_float2int
Issues warning messages on implicit floating to integral conversions. Enabled when all
is used. Equivalent to
#pragma warn_impl_f2i_conv
[no]impl_signedunsigned
Issues warning messages on implicit signed/unsigned conversions. Enabled when all
is used.
[no]notinlined
Issues warning messages for functions declared with the inline
qualifier that are not inlined. Enabled when full
is used. Equivalent to
#pragma warn_notinlined
[no]largeargs
Issues warning messages when passing large arguments to unprototyped functions.
Enabled when most
is used. Equivalent to
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#pragma warn_largeargs
[no]structclass
Issues warning messages on inconsistent use of class
and struct
. Enabled when most
is used. Equivalent to
#pragma warn_structclass
[no]padding
Issue warning messages when padding is added between struct
members. Enabled when full
is used. Equivalent to
#pragma warn_padding
[no]notused
Issues warning messages when the result of non-void-returning functions are not used.
Enabled when full
is used. Equivalent to
#pragma warn_resultnotused
[no]missingreturn
Issues warning messages when a return without a value in non-void-returning function occurs. Enabled when most
is used. Equivalent to
#pragma warn_missingreturn
[no]unusedexpr
Issues warning messages when encountering the use of expressions as statements without side effects. Equivalent to
#pragma warn_no_side_effect
[no]ptrintconv
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-warnings
Issues warning messages when lossy conversions occur from pointers to integers.
Enabled when full
is used.
[no]anyptrintconv
Issues warning messages on any conversion of pointers to integers. Enabled when full
is used. Equivalent to
#pragma warn_ptr_int_conv
[no]undef[macro]
Issues warning messages on the use of undefined macros in
#if
and
#elif
conditionals.
Enabled when full
is used. Equivalent to
#pragma warn_undefmacro
[no]filecaps
Issues warning messages when
# include ""
directives use incorrect capitalization.
Enabled when most
is used. Equivalent to
#pragma warn_filenamecaps
[no]sysfilecaps
Issue warning messages when
# include <>
statements use incorrect capitalization.
Enabled when most
is used. Equivalent to
#pragma warn_filenamecaps_system
[no]tokenpasting
Issue warning messages when token is not formed by the
##
preprocessor operator.
Enabled when most
is used. Equivalent to
#pragma warn_illtokenpasting
[no]relax_i2i_conv
Relax implicit arithmetic conversion warnings on certain implicit conversions. Equivalent to
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