_Pragma("diag_suppress 179") has no effect when used inside a macro, but works when used outside a macro

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    • Type: Bug
    • Resolution: Unresolved
    • Priority: Low

      The attached source file has these lines ...

      #define DEFINE_THIS_MODULE_NAME(_name_)                  \
    _Pragma("diag_push")                                 \
    _Pragma("diag_suppress 179")                         \
    static char const g_this_module_name[] = #_name_;    \
    _Pragma("diag_pop")

// Sees diagnostic 179
DEFINE_THIS_MODULE_NAME(test0)

// Does not see diagnostic 179
_Pragma("diag_push") _Pragma("diag_suppress 179") static char const also_not_used[] = "test1"; _Pragma("diag_pop")

      It uses _Pragma("diag_suppress 179") twice. The first time is from inside a macro. The second time is outside a macro. Build it ...

      % armcl --display_error_number file.c
"file.c", line 8: warning #179-D: variable "g_this_module_name" was declared but never referenced

      The diag_suppress from inside the macro is ignored. The second one, which is the same except for being outside any macro, correctly suppresses the diagnostic.

            Assignee:
            TI User
            Reporter:
            TI User
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              Created:
              Updated:

                Connection: Intermediate to External PROD System
                EXTSYNC-3778 - _Pragma("diag_suppress 179") has no...
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