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150
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1 // RUN: %clang_cc1 -fsyntax-only -verify -Wno-array-bounds %s -fpascal-strings
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2 // RUN: %clang_cc1 -fdiagnostics-parseable-fixits -x c++ %s 2>&1 -Wno-array-bounds -fpascal-strings | FileCheck %s
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3
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4 void consume(const char* c) {}
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5 void consume(const unsigned char* c) {}
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6 void consume(const wchar_t* c) {}
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7 void consumeChar(char c) {}
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8
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9 enum MyEnum {
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10 kMySmallEnum = 1,
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11 kMyEnum = 5
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12 };
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13
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14 enum OperatorOverloadEnum {
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15 kMyOperatorOverloadedEnum = 5
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16 };
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17
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18 const char* operator+(const char* c, OperatorOverloadEnum e) {
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19 return "yo";
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20 }
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21
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22 const char* operator+(OperatorOverloadEnum e, const char* c) {
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23 return "yo";
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24 }
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25
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26 void f(int index) {
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27 // Should warn.
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28 // CHECK: fix-it:"{{.*}}":{31:11-31:11}:"&"
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29 // CHECK: fix-it:"{{.*}}":{31:17-31:18}:"["
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30 // CHECK: fix-it:"{{.*}}":{31:20-31:20}:"]"
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31 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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32 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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33 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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34 consume("foo" + kMySmallEnum); // 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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35
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36 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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37 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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38 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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39 consume(kMySmallEnum + "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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40
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41 // FIXME: suggest replacing with "foo"[5]
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42 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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43 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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44
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45 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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46 consume(L"foo" + 2); // 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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47
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48 consume("foo" + 3); // 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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49 consume("foo" + 4); // 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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50 consume("\pfoo" + 4); // 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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51
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52 #define A "foo"
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53 #define B "bar"
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54 consume(A B + sizeof(A) - 1); // expected-warning {{to a string does not append to the string}} expected-note {{use array indexing to silence this warning}}
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55
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56 // Should not warn.
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57 consume(&("foo"[3]));
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58 consume(&("foo"[index]));
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59 consume(&("foo"[kMyEnum]));
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60
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61
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62 consume("foo" + kMyOperatorOverloadedEnum);
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63 consume(kMyOperatorOverloadedEnum + "foo");
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64 }
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65
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66 template <typename T>
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67 void PR21848() {
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68 (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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69 }
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70 template void PR21848<int>(); // expected-note {{in instantiation of function template specialization 'PR21848<int>' requested here}}
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