72 lines
3.2 KiB
C++
72 lines
3.2 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify -Wno-array-bounds %s -fpascal-strings
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// RUN: %clang_cc1 -fdiagnostics-parseable-fixits -x c++ %s 2>&1 -Wno-array-bounds -fpascal-strings | FileCheck %s
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void consume(const char* c) {}
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void consume(const unsigned char* c) {}
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void consume(const wchar_t* c) {}
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void consumeChar(char c) {}
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enum MyEnum {
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kMySmallEnum = 1,
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kMyEnum = 5
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};
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enum OperatorOverloadEnum {
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kMyOperatorOverloadedEnum = 5
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};
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const char* operator+(const char* c, OperatorOverloadEnum e) {
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return "yo";
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}
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const char* operator+(OperatorOverloadEnum e, const char* c) {
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return "yo";
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}
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void f(int index) {
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// Should warn.
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// CHECK: fix-it:"{{.*}}":{31:11-31:11}:"&"
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// CHECK: fix-it:"{{.*}}":{31:17-31:18}:"["
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// CHECK: fix-it:"{{.*}}":{31:20-31:20}:"]"
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consume("foo" + 5); // expected-warning {{adding 'int' to a string does not append to the string}} expected-note {{use array indexing to silence this warning}}
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consume("foo" + index); // expected-warning {{adding 'int' to a string does not append to the string}} expected-note {{use array indexing to silence this warning}}
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consume("foo" + kMyEnum); // expected-warning {{adding 'MyEnum' to a string does not append to the string}} expected-note {{use array indexing to silence this warning}}
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consume(5 + "foo"); // expected-warning {{adding 'int' to a string does not append to the string}} expected-note {{use array indexing to silence this warning}}
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consume(index + "foo"); // expected-warning {{adding 'int' to a string does not append to the string}} expected-note {{use array indexing to silence this warning}}
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consume(kMyEnum + "foo"); // expected-warning {{adding 'MyEnum' to a string does not append to the string}} expected-note {{use array indexing to silence this warning}}
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// FIXME: suggest replacing with "foo"[5]
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consumeChar(*("foo" + 5)); // expected-warning {{adding 'int' to a string does not append to the string}} expected-note {{use array indexing to silence this warning}}
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consumeChar(*(5 + "foo")); // expected-warning {{adding 'int' to a string does not append to the string}} expected-note {{use array indexing to silence this warning}}
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consume(L"foo" + 5); // expected-warning {{adding 'int' to a string does not append to the string}} expected-note {{use array indexing to silence this warning}}
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// Should not warn.
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consume(&("foo"[3]));
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consume(&("foo"[index]));
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consume(&("foo"[kMyEnum]));
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consume("foo" + kMySmallEnum);
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consume(kMySmallEnum + "foo");
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consume(L"foo" + 2);
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consume("foo" + 3); // Points at the \0
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consume("foo" + 4); // Points 1 past the \0, which is legal too.
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consume("\pfoo" + 4); // Pascal strings don't have a trailing \0, but they
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// have a leading length byte, so this is fine too.
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consume("foo" + kMyOperatorOverloadedEnum);
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consume(kMyOperatorOverloadedEnum + "foo");
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#define A "foo"
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#define B "bar"
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consume(A B + sizeof(A) - 1);
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}
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template <typename T>
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void PR21848() {
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(void)(sizeof(T) + ""); // expected-warning {{to a string does not append to the string}} expected-note {{use array indexing to silence this warning}}
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}
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template void PR21848<int>(); // expected-note {{in instantiation of function template specialization 'PR21848<int>' requested here}}
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