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jeremybenn |
/* Test for compound literals: in C99 only. Test for invalid uses. */
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/* Origin: Joseph Myers <jsm28@cam.ac.uk> */
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/* { dg-do compile } */
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/* { dg-options "-std=iso9899:1999 -pedantic-errors" } */
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struct s { int a; int b; };
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union u { int c; int d; };
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struct si;
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union ui;
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void
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foo (int a)
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{
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/* The type name must not be incomplete (apart from arrays of unknown
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size), or a function type, or a VLA type. */
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(void) { 1 }; /* { dg-bogus "warning" "warning in place of error" } */
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/* { dg-error "init" "void type" { target *-*-* } 17 } */
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&(struct si) { 1 }; /* { dg-bogus "warning" "warning in place of error" } */
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/* { dg-error "init" "incomplete struct type" { target *-*-* } 19 } */
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&(union ui) { 1 }; /* { dg-bogus "warning" "warning in place of error" } */
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/* { dg-error "init" "incomplete union type" { target *-*-* } 21 } */
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(void (void)) { 0 }; /* { dg-bogus "warning" "warning in place of error" } */
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/* { dg-error "init" "function type" { target *-*-* } 23 } */
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(int [a]) { 1 }; /* { dg-bogus "warning" "warning in place of error" } */
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/* { dg-error "init|variable" "VLA type" { target *-*-* } 25 } */
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/* Initializers must not attempt to initialize outside the object
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declared. */
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(int [1]) { [1] = 2 }; /* { dg-bogus "warning" "warning in place of error" } */
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/* { dg-error "init" "value outside array" { target *-*-* } 29 } */
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(int [1]) { [-1] = 2 }; /* { dg-bogus "warning" "warning in place of error" } */
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/* { dg-error "init" "value outside array" { target *-*-* } 31 } */
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(int [1]) { 0, 1 }; /* { dg-bogus "warning" "warning in place of error" } */
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/* { dg-error "init" "value outside array" { target *-*-* } 33 } */
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}
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int z;
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/* Outside a function, initializers must be constant. */
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struct s *s0 = &(struct s) { 0, z }; /* { dg-bogus "warning" "warning in place of error" } */
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/* { dg-error "init" "non-const" { target *-*-* } 40 } */
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int sz = sizeof((struct s) { 0, z }); /* { dg-bogus "warning" "warning in place of error" } */
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/* { dg-error "init" "non-const" { target *-*-* } 42 } */
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/* Compound literals aren't themselves constant expressions. */
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int x = (int) { 0 }; /* { dg-bogus "warning" "warning in place of error" } */
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/* { dg-error "init" "non-const" { target *-*-* } 46 } */
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/* Nor are they suitable structure or union initializers
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outside a function. */
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struct s s1 = (struct s) { 0, 1 }; /* { dg-bogus "warning" "warning in place of error" } */
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/* { dg-error "init" "struct bad init" { target *-*-* } 51 } */
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union u u1 = (union u) { 0 }; /* { dg-bogus "warning" "warning in place of error" } */
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/* { dg-error "init" "union bad init" { target *-*-* } 53 } */
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/* They aren't suitable for array initializers, either inside or outside
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a function. */
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int y[2] = (int [2]) { 0, 1 }; /* { dg-bogus "warning" "warning in place of error" } */
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/* { dg-error "init" "array bad init" { target *-*-* } 58 } */
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void
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bar (void)
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{
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struct s s2 = (struct s) { 0, 1 };
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union u u2 = (union u) { 0 };
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int z[2] = (int [2]) { 0, 1 }; /* { dg-bogus "warning" "warning in place of error" } */
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/* { dg-error "init" "array bad init" { target *-*-* } 66 } */
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}
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