-qsuppress

Pragma equivalent

Purpose

Prevents specific informational or warning messages from being displayed or added to the listing file, if one is generated.

Syntax


-qsuppress syntax (C only)

        .-nosuppress--------------------------.   
        |              .-:------------------. |   
        |              V                    | |   
>>- -q--+-suppress--=----message_identifier-+-+----------------><


-qsuppress syntax (C++ only)

        .-nosuppress--+---------------------------+-.   
        |             |    .-:------------------. | |   
        |             |    V                    | | |   
        |             '-=----message_identifier-+-' |   
        |              .-:------------------.       |   
        |              V                    |       |   
>>- -q--+-suppress--=----message_identifier-+-------+----------><

Defaults

-qnosuppress: All informational and warning messages are reported, unless set otherwise with the -qflag option.

Parameters

message_identifier

Represents a message identifier. The message identifier must be in the following format:

15dd-number

where:

15: Is the compiler product identifier.
dd: Is the two-digit code representing the compiler component that produces the message. See Compiler message format for descriptions of these codes.
number: Is the message number.

Usage

You can only suppress information (I) and warning (W) messages. You cannot suppress other types of messages, such as (S) and (U) level messages. Note that informational and warning messages that supply additional information to a severe error cannot be disabled by this option.

To suppress all informational and warning messages, you can use the -w option.

To suppress IPA messages, enter -qsuppress before -qipa on the command line.

The -qhaltonmsg compiler option has precedence over -qsuppress. If both -qhaltonmsg and -qsuppress are specified, messages that are suppressed by -qsuppress are also printed.

C only The -qnosuppress compiler option cancels previous settings of -qsuppress. C only

C++ only When you specify -qnosuppress with specific message identifiers, the previous -qsuppress instances with the same message identifiers lose effect. When you specify -qnosuppress without specific message identifiers, all previous -qsuppress instances lose effect.

If you specify two or three of the following options, the last option specified has precedence:

-qsuppress=message_identifier
-qnosuppress=message_identifier
-qnosuppress

Predefined macros

None.

Examples

If your program normally results in the following output:

"myprogram.c", line 1.1:1506-224 (I) Incorrect #pragma ignored

you can suppress the message by compiling with:

xlc myprogram.c -qsuppress=1506-224

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