db3acfa547
* c-common.def (COMPOUND_LITERAL_EXPR): New. * c-common.c (c_expand_expr): Handle COMPOUND_LITERAL_EXPR. (c_staticp): New function. * c-common.h (COMPOUND_LITERAL_EXPR_DECL): New. (c_staticp): Declare. * c-typeck.c (default_function_array_conversion, build_unary_op): Don't handle CONSTRUCTOR specially. (lvalue_p, mark_addressable): Handle COMPOUND_LITERAL_EXPR. * c-decl.c (build_compound_literal): New function. * c-tree.h (build_compound_literal): Declare. * c-parse.in (primary): Use build_compound_literal. * c-lang.c (LANG_HOOKS_STATICP): Define. * objc/objc-lang.c (LANG_HOOKS_STATICP): Likewise. * doc/c-tree.texi: Document COMPOUND_LITERAL_EXPR. * doc/extend.texi: Update documentation of compound literals. Fixes PR c/4787. testsuite: * gcc.c-torture/execute/20000722-1.x, gcc.c-torture/execute/20010123-1.x: Remove. * gcc.c-torture/compile/init-3.c: Don't use a compound literal. * gcc.dg/c90-complit-1.c, gcc.dg/c99-complit-1.c, gcc.dg/c99-complit-2.c: New tests. From-SVN: r47629
113 lines
2.8 KiB
C
113 lines
2.8 KiB
C
/* Test for compound literals: in C99 only. Test for valid uses. */
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/* Origin: Joseph Myers <jsm28@cam.ac.uk> */
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/* { dg-do run } */
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/* { dg-options "-std=iso9899:1999 -pedantic-errors" } */
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extern void abort (void);
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extern void exit (int);
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struct s { int a; int b; };
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union u { int c; int d; };
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int *i0a = &(int) { 0 };
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int *i0b = &(int) { 0 };
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int *i1a = &(int) { 1 };
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int *i1b = &(int) { 1 };
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const int *i0c = &(const int) { 0 };
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struct s *s0 = &(struct s) { 1, 2 };
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struct s *s1 = &(struct s) { 1, 2 };
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const struct s *s2 = &(const struct s) { 1, 2 };
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union u *u0 = &(union u) { 3 };
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union u *u1 = &(union u) { 3 };
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const union u *u2 = &(const union u) { 3 };
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int *a0 = (int []) { 1, 2, 3 };
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const int *a1 = (const int []) { 1, 2, 3 };
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char *p = (char []){ "foo" };
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int
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main (void)
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{
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if (i0a == i0b || i0a == i0c || i0b == i0c)
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abort ();
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if (i1a == i1b)
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abort ();
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if (*i0a != 0 || *i0b != 0 || *i1a != 1 || *i1b != 1 || *i0c != 0)
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abort ();
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*i0a = 1;
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*i1a = 0;
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if (*i0a != 1 || *i0b != 0 || *i1a != 0 || *i1b != 1 || *i0c != 0)
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abort ();
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if (s0 == s1 || s1 == s2 || s2 == s0)
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abort ();
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if (s0->a != 1 || s0->b != 2 || s1->a != 1 || s1->b != 2
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|| s2->a != 1 || s2->b != 2)
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abort ();
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s0->a = 2;
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s1->b = 1;
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if (s0->a != 2 || s0->b != 2 || s1->a != 1 || s1->b != 1
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|| s2->a != 1 || s2->b != 2)
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abort ();
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if (u0 == u1 || u1 == u2 || u2 == u0)
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abort ();
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if (u0->c != 3 || u1->c != 3 || u2->c != 3)
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abort ();
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u0->d = 2;
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if (u0->d != 2 || u1->c != 3 || u2->c != 3)
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abort ();
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if (a0 == a1)
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abort ();
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if (a0[0] != 1 || a0[1] != 2 || a0[2] != 3
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|| a1[0] != 1 || a1[1] != 2 || a1[2] != 3)
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abort ();
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a0[0] = 3;
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if (a0[0] != 3 || a0[1] != 2 || a0[2] != 3
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|| a1[0] != 1 || a1[1] != 2 || a1[2] != 3)
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abort ();
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if (p[0] != 'f' || p[1] != 'o' || p[2] != 'o' || p[3] != 0)
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abort ();
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p[0] = 'g';
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if (p[0] != 'g' || p[1] != 'o' || p[2] != 'o' || p[3] != 0)
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abort ();
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if (sizeof((int []) { 1, 2 ,3 }) != 3 * sizeof(int))
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abort ();
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if (sizeof((int []) { [3] = 4 }) != 4 * sizeof(int))
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abort ();
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struct s *y;
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for (int i = 0; i < 3; i++) {
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struct s *x = &(struct s) { 1, i };
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if (x->a != 1 || x->b != i)
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abort ();
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x->a++;
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x->b--;
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if (x->a != 2 || x->b != i - 1)
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abort ();
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if (i && y != x)
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abort ();
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y = x;
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}
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int *z;
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for (int i = 0; i < 4; i++) {
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int *x = (int []){ 0, i, i + 2, i - 3 };
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if (x[0] != 0 || x[1] != i || x[2] != i + 2 || x[3] != i - 3)
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abort ();
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x[0] = x[1];
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x[1] *= x[2];
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x[2] -= x[3];
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x[3] += 7;
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if (x[0] != i || x[1] != i * (i + 2) || x[2] != 5 || x[3] != i + 4)
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abort ();
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if (i && z != x)
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abort ();
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z = x;
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}
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(int) { 0 } = 1;
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(struct s) { 0, 1 }.a = 3;
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(union u) { 3 }.c = 4;
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(int []){ 1, 2 }[0] = 0;
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exit (0);
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}
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