72 lines
2.4 KiB
C++
72 lines
2.4 KiB
C++
// RUN: clang-cc -fsyntax-only -verify %s
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template<int I, int J>
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struct Bitfields {
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int simple : I; // expected-error{{bit-field 'simple' has zero width}}
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int parens : (J);
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};
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void test_Bitfields(Bitfields<0, 5> *b) {
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(void)sizeof(Bitfields<10, 5>);
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(void)sizeof(Bitfields<0, 1>); // expected-note{{in instantiation of template class 'struct Bitfields<0, 1>' requested here}}
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}
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template<int I, int J>
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struct BitfieldPlus {
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int bitfield : I + J; // expected-error{{bit-field 'bitfield' has zero width}}
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};
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void test_BitfieldPlus() {
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(void)sizeof(BitfieldPlus<0, 1>);
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(void)sizeof(BitfieldPlus<-5, 5>); // expected-note{{in instantiation of template class 'struct BitfieldPlus<-5, 5>' requested here}}
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}
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template<int I, int J>
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struct BitfieldMinus {
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int bitfield : I - J; // expected-error{{bit-field 'bitfield' has negative width (-1)}} \
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// expected-error{{bit-field 'bitfield' has zero width}}
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};
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void test_BitfieldMinus() {
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(void)sizeof(BitfieldMinus<5, 1>);
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(void)sizeof(BitfieldMinus<0, 1>); // expected-note{{in instantiation of template class 'struct BitfieldMinus<0, 1>' requested here}}
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(void)sizeof(BitfieldMinus<5, 5>); // expected-note{{in instantiation of template class 'struct BitfieldMinus<5, 5>' requested here}}
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}
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template<int I, int J>
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struct BitfieldDivide {
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int bitfield : I / J; // expected-error{{expression is not an integer constant expression}} \
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// expected-note{{division by zero}}
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};
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void test_BitfieldDivide() {
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(void)sizeof(BitfieldDivide<5, 1>);
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(void)sizeof(BitfieldDivide<5, 0>); // expected-note{{in instantiation of template class 'struct BitfieldDivide<5, 0>' requested here}}
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}
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template<typename T, T I, int J>
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struct BitfieldDep {
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int bitfield : I + J;
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};
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void test_BitfieldDep() {
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(void)sizeof(BitfieldDep<int, 1, 5>);
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}
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template<int I>
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struct BitfieldNeg {
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int bitfield : (-I); // expected-error{{bit-field 'bitfield' has negative width (-5)}}
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};
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template<typename T, T I>
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struct BitfieldNeg2 {
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int bitfield : (-I); // expected-error{{bit-field 'bitfield' has negative width (-5)}}
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};
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void test_BitfieldNeg() {
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(void)sizeof(BitfieldNeg<-5>); // okay
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(void)sizeof(BitfieldNeg<5>); // expected-note{{in instantiation of template class 'struct BitfieldNeg<5>' requested here}}
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(void)sizeof(BitfieldNeg2<int, -5>); // okay
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(void)sizeof(BitfieldNeg2<int, 5>); // expected-note{{in instantiation of template class 'struct BitfieldNeg2<int, 5>' requested here}}
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}
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