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111
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1 /* { dg-options "-Wuninitialized" } */
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2
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3 /* Verify disabling a warning, where both the _Pragma and the
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4 affected code are within (different) macros. */
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5
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6 /* TODO: XFAIL: both C and C++ erroneously fail to suppress the warning
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7 The warning is reported at the macro definition location, rather than
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8 the macro expansion location. */
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9
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10 # define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \
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11 _Pragma ("GCC diagnostic push") \
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12 _Pragma ("GCC diagnostic ignored \"-Wuninitialized\"")\
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13 _Pragma ("GCC diagnostic ignored \"-Wmaybe-uninitialized\"")
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14 # define YY_IGNORE_MAYBE_UNINITIALIZED_END \
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15 _Pragma ("GCC diagnostic pop")
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16
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17 #define WARNABLE_CODE *++yyvsp = yylval; /* { dg-bogus "used uninitialized" "" { xfail *-*-* } } */
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18
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19 void test (char yylval)
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20 {
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21 char *yyvsp; /* { dg-bogus "declared here" "" { xfail *-*-* } } */
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22 YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN
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23 WARNABLE_CODE
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24 YY_IGNORE_MAYBE_UNINITIALIZED_END
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25 }
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