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150
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1 // RUN: %clang_cc1 -fsyntax-only -verify %s
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2
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3 struct AB{const char *a; const char*b;};
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4
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5 const char *foo(const struct AB *ab) {
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6 return ab->a + 'b'; // expected-warning {{adding 'char' to a string pointer does not append to the string}} expected-note {{use array indexing to silence this warning}}
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7 }
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8
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9 void f(const char *s) {
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10 char *str = 0;
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11 char *str2 = str + 'c'; // expected-warning {{adding 'char' to a string pointer does not append to the string}} expected-note {{use array indexing to silence this warning}}
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12
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13 const char *constStr = s + 'c'; // expected-warning {{adding 'char' to a string pointer does not append to the string}} expected-note {{use array indexing to silence this warning}}
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14
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15 str = 'c' + str;// expected-warning {{adding 'char' to a string pointer does not append to the string}} expected-note {{use array indexing to silence this warning}}
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16
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17 char strArr[] = "foo";
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18 str = strArr + 'c'; // expected-warning {{adding 'char' to a string pointer does not append to the string}} expected-note {{use array indexing to silence this warning}}
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19 char *strArr2[] = {"ac","dc"};
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20 str = strArr2[0] + 'c'; // expected-warning {{adding 'char' to a string pointer does not append to the string}} expected-note {{use array indexing to silence this warning}}
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21
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22
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23 struct AB ab;
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24 constStr = foo(&ab) + 'c'; // expected-warning {{adding 'char' to a string pointer does not append to the string}} expected-note {{use array indexing to silence this warning}}
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25
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26 // no-warning
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27 char c = 'c';
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28 str = str + c;
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29 str = c + str;
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30 }
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