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/* Test #elifdef and #elifndef in C23. */
/* { dg-do preprocess } */
/* { dg-options "-std=c23 -pedantic-errors" } */
#define A
#undef B
#if 0
#elifdef A
#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
#define M2 2
#endif
#if M2 != 2
#error "#elifndef B did not apply"
#endif
#if 0
#elifdef A
#else
#error "#elifdef A did not apply"
#endif
#if 0
#elifndef B
#else
#error "#elifndef B did not apply"
#endif
/* As with #elif, the syntax of the new directives is relaxed after a
non-skipped group. */
#if 1
#elifdef x * y
#endif
#if 1
#elifndef !
#endif
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