c68e140657
destination type for initialization, assignment, parameter-passing,
etc. The main issue fixed here is that we used rather confusing
wording for diagnostics such as
t.c:2:9: warning: initializing 'char const [2]' discards qualifiers,
expected 'char *' [-pedantic]
char *name = __func__;
^ ~~~~~~~~
We're not initializing a 'char const [2]', we're initializing a 'char
*' with an expression of type 'char const [2]'. Similar problems
existed for other diagnostics in this area, so I've normalized them all
with more precise descriptive text to say what we're
initializing/converting/assigning/etc. from and to. The warning for
the code above is now:
t.c:2:9: warning: initializing 'char *' from an expression of type
'char const [2]' discards qualifiers [-pedantic]
char *name = __func__;
^ ~~~~~~~~
Fixes <rdar://problem/7447179>.
llvm-svn: 100832
49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
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// Tests that dependent expressions are always allowed, whereas non-dependent
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// are checked as usual.
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#include <stddef.h>
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// Fake typeid, lacking a typeinfo header.
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namespace std { class type_info {}; }
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struct dummy {}; // expected-note 3 {{candidate constructor (the implicit copy constructor)}}
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template<typename T>
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int f0(T x) {
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return (sizeof(x) == sizeof(int))? 0 : (sizeof(x) == sizeof(double))? 1 : 2;
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}
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template <typename T, typename U>
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T f1(T t1, U u1, int i1)
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{
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T t2 = i1;
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t2 = i1 + u1;
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++u1;
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u1++;
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int i2 = u1;
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i1 = t1[u1];
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i1 *= t1;
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i1(u1, t1); // error
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u1(i1, t1);
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U u2 = (T)i1;
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static_cast<void>(static_cast<U>(reinterpret_cast<T>(
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dynamic_cast<U>(const_cast<T>(i1)))));
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new U(i1, t1);
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new int(t1, u1);
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new (t1, u1) int;
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delete t1;
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dummy d1 = sizeof(t1); // expected-error {{no viable conversion}}
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dummy d2 = offsetof(T, foo); // expected-error {{no viable conversion}}
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dummy d3 = __alignof(u1); // expected-error {{no viable conversion}}
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i1 = typeid(t1); // expected-error {{assigning to 'int' from incompatible type 'std::type_info const'}}
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return u1;
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}
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