ed3ea9f271
PR c++/89599 * constexpr.c (potential_constant_expression_1): Reject REINTERPRET_CAST_P NOP_EXPRs. * g++.dg/ubsan/vptr-4.C: Adjust expected diagnostics. * g++.dg/parse/array-size2.C: Likewise. * g++.dg/cpp0x/constexpr-89599.C: New test. From-SVN: r269482
23 lines
711 B
C
23 lines
711 B
C
// PR c/25682
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// { dg-do compile }
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// Test whether we don't ICE on questionable constructs where offsetof
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// should have been used instead.
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struct S
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{
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char a[4];
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int b;
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};
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extern void bar (char *, char *);
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void
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foo (void)
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{
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char g[(char *) &((struct S *) 0)->b - (char *) 0]; // { dg-error "40:size of array .g. is not an integral constant-expression" }
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// { dg-error "narrowing conversion" "" { target c++11 } .-1 }
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// { dg-message "expression has a constant value but is not a C.. constant-expression" "" { target c++11 } .-2 }
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char h[(__SIZE_TYPE__) &((struct S *) 8)->b]; // { dg-error "10:size of array .h. is not an integral constant-expression" }
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bar (g, h);
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}
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