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author | ed <ed@FreeBSD.org> | 2009-06-02 17:58:47 +0000 |
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committer | ed <ed@FreeBSD.org> | 2009-06-02 17:58:47 +0000 |
commit | f27e5a09a0d815b8a4814152954ff87dadfdefc0 (patch) | |
tree | ce7d964cbb5e39695b71481698f10cb099c23d4a /test/SemaCXX/overload-call.cpp | |
download | FreeBSD-src-f27e5a09a0d815b8a4814152954ff87dadfdefc0.zip FreeBSD-src-f27e5a09a0d815b8a4814152954ff87dadfdefc0.tar.gz |
Import Clang, at r72732.
Diffstat (limited to 'test/SemaCXX/overload-call.cpp')
-rw-r--r-- | test/SemaCXX/overload-call.cpp | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/test/SemaCXX/overload-call.cpp b/test/SemaCXX/overload-call.cpp new file mode 100644 index 0000000..94f352e --- /dev/null +++ b/test/SemaCXX/overload-call.cpp @@ -0,0 +1,280 @@ +// RUN: clang-cc -fsyntax-only -pedantic -verify %s +int* f(int) { return 0; } +float* f(float) { return 0; } +void f(); + +void test_f(int iv, float fv) { + float* fp = f(fv); + int* ip = f(iv); +} + +int* g(int, float, int); // expected-note {{ candidate function }} +float* g(int, int, int); // expected-note {{ candidate function }} +double* g(int, float, float); // expected-note {{ candidate function }} +char* g(int, float, ...); // expected-note {{ candidate function }} +void g(); + +void test_g(int iv, float fv) { + int* ip1 = g(iv, fv, 0); + float* fp1 = g(iv, iv, 0); + double* dp1 = g(iv, fv, fv); + char* cp1 = g(0, 0); + char* cp2 = g(0, 0, 0, iv, fv); + + double* dp2 = g(0, fv, 1.5); // expected-error {{ call to 'g' is ambiguous; candidates are: }} +} + +double* h(double f); +int* h(int); + +void test_h(float fv, unsigned char cv) { + double* dp = h(fv); + int* ip = h(cv); +} + +int* i(int); +double* i(long); + +void test_i(short sv, int iv, long lv, unsigned char ucv) { + int* ip1 = i(sv); + int* ip2 = i(iv); + int* ip3 = i(ucv); + double* dp1 = i(lv); +} + +int* j(void*); +double* j(bool); + +void test_j(int* ip) { + int* ip1 = j(ip); +} + +int* k(char*); +double* k(bool); + +void test_k() { + int* ip1 = k("foo"); + double* dp1 = k(L"foo"); +} + +int* l(wchar_t*); +double* l(bool); + +void test_l() { + int* ip1 = l(L"foo"); + double* dp1 = l("foo"); +} + +int* m(const char*); +double* m(char*); + +void test_m() { + int* ip = m("foo"); +} + +int* n(char*); +double* n(void*); +class E; + +void test_n(E* e) { + char ca[7]; + int* ip1 = n(ca); + int* ip2 = n("foo"); + + float fa[7]; + double* dp1 = n(fa); + + double* dp2 = n(e); +} + +enum PromotesToInt { + PromotesToIntValue = -1 +}; + +enum PromotesToUnsignedInt { + PromotesToUnsignedIntValue = 1u +}; + +int* o(int); +double* o(unsigned int); +float* o(long); + +void test_o() { + int* ip1 = o(PromotesToIntValue); + double* dp1 = o(PromotesToUnsignedIntValue); +} + +int* p(int); +double* p(double); + +void test_p() { + int* ip = p((short)1); + double* dp = p(1.0f); +} + +struct Bits { + signed short int_bitfield : 5; + unsigned int uint_bitfield : 8; +}; + +int* bitfields(int, int); +float* bitfields(unsigned int, int); + +void test_bitfield(Bits bits, int x) { + int* ip = bitfields(bits.int_bitfield, 0); + float* fp = bitfields(bits.uint_bitfield, 0u); +} + +int* multiparm(long, int, long); // expected-note {{ candidate function }} +float* multiparm(int, int, int); // expected-note {{ candidate function }} +double* multiparm(int, int, short); // expected-note {{ candidate function }} + +void test_multiparm(long lv, short sv, int iv) { + int* ip1 = multiparm(lv, iv, lv); + int* ip2 = multiparm(lv, sv, lv); + float* fp1 = multiparm(iv, iv, iv); + float* fp2 = multiparm(sv, iv, iv); + double* dp1 = multiparm(sv, sv, sv); + double* dp2 = multiparm(iv, sv, sv); + multiparm(sv, sv, lv); // expected-error {{ call to 'multiparm' is ambiguous; candidates are: }} +} + +// Test overloading based on qualification vs. no qualification +// conversion. +int* quals1(int const * p); +char* quals1(int * p); + +int* quals2(int const * const * pp); +char* quals2(int * * pp); + +int* quals3(int const * * const * ppp); +char* quals3(int *** ppp); + +void test_quals(int * p, int * * pp, int * * * ppp) { + char* q1 = quals1(p); + char* q2 = quals2(pp); + char* q3 = quals3(ppp); +} + +// Test overloading based on qualification ranking (C++ 13.3.2)p3. +int* quals_rank1(int const * p); +float* quals_rank1(int const volatile *p); +char* quals_rank1(char*); +double* quals_rank1(const char*); + +int* quals_rank2(int const * const * pp); +float* quals_rank2(int * const * pp); + +void quals_rank3(int const * const * const volatile * p); // expected-note{{candidate function}} +void quals_rank3(int const * const volatile * const * p); // expected-note{{candidate function}} + +void quals_rank3(int const *); // expected-note{{candidate function}} +void quals_rank3(int volatile *); // expected-note{{candidate function}} + +void test_quals_ranking(int * p, int volatile *pq, int * * pp, int * * * ppp) { + int* q1 = quals_rank1(p); + float* q2 = quals_rank1(pq); + double* q3 = quals_rank1("string literal"); + char a[17]; + const char* ap = a; + char* q4 = quals_rank1(a); + double* q5 = quals_rank1(ap); + + float* q6 = quals_rank2(pp); + + quals_rank3(ppp); // expected-error {{call to 'quals_rank3' is ambiguous; candidates are:}} + + quals_rank3(p); // expected-error {{call to 'quals_rank3' is ambiguous; candidates are:}} + quals_rank3(pq); +} + +// Test overloading based on derived-to-base conversions +class A { }; +class B : public A { }; +class C : public B { }; +class D : public C { }; + +int* derived1(A*); +char* derived1(const A*); +float* derived1(void*); + +int* derived2(A*); +float* derived2(B*); + +int* derived3(A*); +float* derived3(const B*); +char* derived3(C*); + +void test_derived(B* b, B const* bc, C* c, const C* cc, void* v, D* d) { + int* d1 = derived1(b); + char* d2 = derived1(bc); + int* d3 = derived1(c); + char* d4 = derived1(cc); + float* d5 = derived1(v); + + float* d6 = derived2(b); + float* d7 = derived2(c); + + char* d8 = derived3(d); +} + +// Test overloading of references. +// (FIXME: tests binding to determine candidate sets, not overload +// resolution per se). +int* intref(int&); +float* intref(const int&); + +void intref_test() { + float* ir1 = intref(5); + float* ir2 = intref(5.5); +} + +// Test reference binding vs. standard conversions. +int& bind_vs_conv(const double&); +float& bind_vs_conv(int); + +void bind_vs_conv_test() +{ + int& i1 = bind_vs_conv(1.0f); + float& f1 = bind_vs_conv((short)1); +} + +// Test that cv-qualifiers get subsumed in the reference binding. +struct X { }; +struct Y { }; +struct Z : X, Y { }; + +int& cvqual_subsume(X&); // expected-note{{candidate function}} +float& cvqual_subsume(const Y&); // expected-note{{candidate function}} + +int& cvqual_subsume2(const X&); +float& cvqual_subsume2(const volatile Y&); + +Z get_Z(); + +void cvqual_subsume_test(Z z) { + cvqual_subsume(z); // expected-error{{call to 'cvqual_subsume' is ambiguous; candidates are:}} + int& x = cvqual_subsume2(get_Z()); // okay: only binds to the first one +} + +// Test overloading with cv-qualification differences in reference +// binding. +int& cvqual_diff(X&); +float& cvqual_diff(const X&); + +void cvqual_diff_test(X x, Z z) { + int& i1 = cvqual_diff(x); + int& i2 = cvqual_diff(z); +} + +// Test overloading with derived-to-base differences in reference +// binding. +struct Z2 : Z { }; + +int& db_rebind(X&); +long& db_rebind(Y&); +float& db_rebind(Z&); + +void db_rebind_test(Z2 z2) { + float& f1 = db_rebind(z2); +} |