mirror of git://sourceware.org/git/glibc.git
56 lines
2.0 KiB
C
56 lines
2.0 KiB
C
/* Test bsearch const-generic macro.
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Copyright (C) 2025 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <stdlib.h>
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#include <libc-diag.h>
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void *vp;
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const void *cvp;
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int *ip;
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const int *cip;
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size_t sz;
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int (*compar) (const void *, const void *);
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#define CHECK_TYPE(EXPR, TYPE) \
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_Static_assert (_Generic (EXPR, TYPE: 1), "type check")
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static int
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do_test (void)
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{
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/* This is a compilation test. */
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CHECK_TYPE (bsearch (cvp, cvp, sz, sz, compar), const void *);
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CHECK_TYPE (bsearch (cvp, vp, sz, sz, compar), void *);
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CHECK_TYPE (bsearch (vp, cvp, sz, sz, compar), const void *);
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CHECK_TYPE (bsearch (vp, vp, sz, sz, compar), void *);
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CHECK_TYPE (bsearch (cvp, cip, sz, sz, compar), const void *);
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CHECK_TYPE (bsearch (cvp, ip, sz, sz, compar), void *);
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CHECK_TYPE (bsearch (vp, cip, sz, sz, compar), const void *);
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CHECK_TYPE (bsearch (vp, ip, sz, sz, compar), void *);
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DIAG_PUSH_NEEDS_COMMENT;
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/* This deliberately tests the type of the result with a null
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pointer constant argument. */
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DIAG_IGNORE_NEEDS_COMMENT (14, "-Wnonnull");
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CHECK_TYPE (bsearch (cvp, 0, sz, sz, compar), void *);
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CHECK_TYPE (bsearch (cvp, (void *) 0, sz, sz, compar), void *);
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DIAG_POP_NEEDS_COMMENT;
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CHECK_TYPE ((bsearch) (cvp, cvp, sz, sz, compar), void *);
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return 0;
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}
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#include <support/test-driver.c>
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