Alessandro Bonazzi
e075990ed3
Files correlati : Commento : Aggiunto il preprocessore c++ mcpp per sostituire il compilatore nella compilazione delle maschere.
35 lines
1.4 KiB
C
35 lines
1.4 KiB
C
/* n_nularg.c: Empty argument of macro call. */
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#define ARG( a) # a
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#define EMPTY
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#define SHOWN( n) printf( "%s : %d\n", # n, n)
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#define SHOWS( s) printf( "%s : %s\n", # s, ARG( s))
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#define add( a, b) (a + b)
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#define sub( a, b) (a - b)
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#define math( op, a, b) op( a, b)
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#define APPEND( a, b) a ## b
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/* printf( "%s : %d\n", "math( sub, , y)", ( - y)); */
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SHOWN( math( sub, , y));
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/* printf( "%s : %s\n", "EMPTY", ""); */
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SHOWS( EMPTY);
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/* printf( "%s : %s\n", "APPEND( CON, 1)", "CON1"); */
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SHOWS( APPEND( CON, 1));
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/* printf( "%s : %s\n", "APPEND( , )", ""); */
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SHOWS( APPEND( , ));
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/* { dg-do preprocess }
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{ dg-options "-std=c99 -w" }
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{ dg-final { if ![file exist n_nularg.i] { return } } }
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{ dg-final { if \{ [grep n_nularg.i "printf\\( \"%s : %d\\\\n\", \"math\\( sub, , y\\)\", *\\( *- *y *\\) *\\)" ] != "" \} \{ } }
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{ dg-final { if \{ [grep n_nularg.i "printf\\( \"%s : %s\\\\n\", \"EMPTY\", *\"\" *\\)" ] != "" \} \{ } }
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{ dg-final { if \{ [grep n_nularg.i "printf\\( \"%s : %s\\\\n\", \"APPEND\\( CON, 1\\)\", *\"CON1\" *\\)" ] != "" \} \{ } }
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{ dg-final { if \{ [grep n_nularg.i "printf\\( \"%s : %s\\\\n\", \"APPEND\\( , \\)\", *\"\" *\\)" ] != "" \} \{ } }
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{ dg-final { return \} \} \} \} } }
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{ dg-final { fail "n_nularg.c: empty argument" } }
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*/
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