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annotate gcc/testsuite/gcc.dg/cpp/tr-warn2.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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111
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1 /* K+R rejects use of function-like macros in non-function context.
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2 ANSI C explicitly permits this (the macro is not expanded).
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3
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4 We should not warn about this during pre-expansion of arguments,
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5 since traditional preprocessors don't do pre-expansion, and we get
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6 the warning anyway during the re-scan pass if and only if it is
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7 appropriate. */
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8
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9 /* { dg-do preprocess } */
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10 /* { dg-options -Wtraditional } */
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11
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12 #define f(x) x
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13 #define g(x) x / 2
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14 #define h(a, b) a(b)
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15 f(g) (3) /* { dg-bogus "must be used with arguments" } */
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16 f 2 /* { dg-warning "must be used with arguments" } */
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17 f(g) 3 /* { dg-warning "must be used with arguments" } */
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18 h(f, 3) /* { dg-bogus "must be used with arguments" } */