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111
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1 /* Test for non-lvalue arrays decaying to pointers: in C99 only.
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2 Test various ways of producing non-lvalue arrays. */
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3 /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
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4 /* { dg-do compile } */
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5 /* { dg-options "-std=iso9899:1990 -pedantic-errors" } */
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6
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7 struct s { char c[17]; };
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8
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9 struct s x;
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10
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11 struct s a, b, c;
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12 int d;
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13
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14 #define ASSERT(v, a) char v[((a) ? 1 : -1)]
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15
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16 ASSERT (p, sizeof (x.c) == 17);
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17 ASSERT (q, sizeof (0, x.c) == sizeof (char *));
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18 ASSERT (r0, sizeof ((d ? b : c).c) == 17);
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19 ASSERT (r1, sizeof ((d, b).c) == 17);
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20 ASSERT (r2, sizeof ((a = b).c) == 17);
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21 /* The non-lvalue array does not decay to a pointer, so the comma expression
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22 has (non-lvalue) array type.
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23 */
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24 ASSERT (s0, sizeof (0, (d ? b : c).c) == 17); /* { dg-bogus "array" "bad non-lvalue array handling" } */
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25 ASSERT (s0, sizeof (0, (d, b).c) == 17); /* { dg-bogus "array" "bad non-lvalue array handling" } */
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26 ASSERT (s0, sizeof (0, (a = b).c) == 17); /* { dg-bogus "array" "bad non-lvalue array handling" } */
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