Alessandro Bonazzi
e075990ed3
Files correlati : Commento : Aggiunto il preprocessore c++ mcpp per sostituire il compilatore nella compilazione delle maschere.
29 lines
1.4 KiB
C
29 lines
1.4 KiB
C
/* n_vargs.c: Macro of variable arguments */
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/* from C99 Standard 6.10.3 Examples */
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#define debug( ...) fprintf( stderr, __VA_ARGS__)
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#define showlist( ...) puts( #__VA_ARGS__)
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#define report( test, ...) ((test) ? puts( #test) \
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: printf( __VA_ARGS__))
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{
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/* fprintf( stderr, "Flag"); */
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debug( "Flag");
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/* fprintf( stderr, "X = %d\n", x); */
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debug( "X = %d\n", x);
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/* puts( "The first, second, and third items."); */
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showlist( The first, second, and third items.);
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/* ((x>y) ? puts( "x>y") : printf( "x is %d but y is %d", x, y)); */
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report( x>y, "x is %d but y is %d", x, y);
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}
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/* { dg-do preprocess }
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{ dg-options "-std=c99" }
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{ dg-final { if ![file exist n_vargs.i] { return } } }
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{ dg-final { if \{ [grep n_vargs.i "fprintf\\( stderr, *\"Flag\" *\\)"] != "" \} \{ } }
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{ dg-final { if \{ [grep n_vargs.i "fprintf\\( stderr, *\"X = %d\\\\n\", x *\\)"] != "" \} \{ } }
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{ dg-final { if \{ [grep n_vargs.i "puts\\( \"The first, second, and third items\.\" *\\)"] != "" \} \{ } }
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{ dg-final { if \{ [grep n_vargs.i "\\(\\( *x>y *\\) \[?\] puts\\( \"x>y\" *\\) : printf\\( *\"x is %d but y is %d\", x, y *\\)\\)"] != "" \} \{ } }
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{ dg-final { return \} \} \} \} } }
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{ dg-final { fail "n_vargs.c: macro of variable arguments" } }
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*/
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