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// P2334R1
// { dg-do preprocess }
// { dg-options "-pedantic-errors" }
#define A
#undef B
#if 0
#elifdef A // { dg-error "'#elifdef' before C\\\+\\\+23 is a GCC extension" "" { target c++20_down } }
#define M1 1
#endif
#if M1 != 1
#error "#elifdef A did not apply"
#endif
#if 0
#elifdef B
#error "#elifdef B applied"
#endif
#if 0
#elifndef A
#error "#elifndef A applied"
#endif
#if 0
#elifndef B // { dg-error "'#elifndef' before C\\\+\\\+23 is a GCC extension" "" { target c++20_down } }
#define M2 2
#endif
#if M2 != 2
#error "#elifndef B did not apply"
#endif
#if 0
#elifdef A // { dg-error "'#elifdef' before C\\\+\\\+23 is a GCC extension" "" { target c++20_down } }
#else
#error "#elifdef A did not apply"
#endif
#if 0
#elifndef B // { dg-error "'#elifndef' before C\\\+\\\+23 is a GCC extension" "" { target c++20_down } }
#else
#error "#elifndef B did not apply"
#endif
#if 1
#elifdef A // { dg-error "'#elifdef' before C\\\+\\\+23 is a GCC extension" "" { target c++20_down } }
#endif
#if 1
#elifndef B // { dg-error "'#elifndef' before C\\\+\\\+23 is a GCC extension" "" { target c++20_down } }
#endif
// As with #elif, the syntax of the new directives is relaxed after a
non-skipped group.
#if 1
#elifdef x * y // { dg-error "'#elifdef' before C\\\+\\\+23 is a GCC extension" "" { target c++20_down } }
#endif
#if 1
#elifndef ! // { dg-error "'#elifndef' before C\\\+\\\+23 is a GCC extension" "" { target c++20_down } }
#endif
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