a94c119922
* cpplex.c (parse_args): Don't set VOID_REST flag.
(Fix diagnostic merge problem).
(CONTEXT_VARARGS): New flag.
(maybe_paste_with_next): Set context earlier in loop. Use
it. Do varargs test with CONTEXT_VARARGS flag.
(push_arg_context): Set CONTEXT_VARARGS flag if we're
pushing an argument context for a varargs argument.
* cpplib.h (VOID_REST): Delete.
* gcc.dg/cpp/vararg1.c: Add test case.
From-SVN: r36638
27 lines
681 B
C
27 lines
681 B
C
/* { dg-do run } */
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/* { dg-options -w } */
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/* count() used to give 1 owing to a buggy test for varargs. */
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#define count(y...) count1 ( , ##y)
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#define count1(y...) count2 (y,1,0)
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#define count2(_,x0,n,y...) n
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#if count() != 0 || count(A) != 1
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#error Incorrect vararg argument counts
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#endif
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/* Test for changed behavior of the GNU varargs extension.
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##args, where args is a rest argument which received zero tokens,
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used to delete the previous sequence of nonwhitespace characters.
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Now it deletes the previous token. */
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#include <string.h>
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#define S(str, args...) " " str "\n", ##args
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int
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main()
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{
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const char *s = S("foo");
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return strchr (s, '\n') == NULL;
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}
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