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annotate gcc/testsuite/g++.dg/warn/Wconversion-null-2.C @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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111
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1 // { dg-do link }
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2 // { dg-options "" }
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3
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4 #include <cstddef>
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5
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6 void g(int) {}
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7 void g(long) {}
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8 void g(long long) {}
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9 extern void g(void*);
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10
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11 template <int I>
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12 void h() {}
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13
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14 void k(int) {}
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15
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16 template <class T>
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17 void l(T);
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18
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19 template <>
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20 void l(int) {}
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21
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22 template <>
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23 void l(long) {}
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24
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25 template <>
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26 void l(long long) {}
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27
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28 void warn_for_NULL()
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29 {
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30 int i = NULL; // { dg-warning "" } converting NULL to non-pointer type
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31 float z = NULL; // { dg-warning "" } converting NULL to non-pointer type
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32 int a[2];
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33
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34 i != NULL; // { dg-warning "" } NULL used in arithmetic
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35 NULL != z; // { dg-warning "" } NULL used in arithmetic
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36 k != NULL; // No warning: decay conversion
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37 NULL != a; // Likewise.
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38 -NULL; // { dg-warning "" } converting NULL to non-pointer type
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39 +NULL; // { dg-warning "" } converting NULL to non-pointer type
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40 ~NULL; // { dg-warning "" } converting NULL to non-pointer type
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41 a[NULL] = 3; // { dg-warning "" } converting NULL to non-pointer-type
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42 i = NULL; // { dg-warning "" } converting NULL to non-pointer type
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43 z = NULL; // { dg-warning "" } converting NULL to non-pointer type
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44 k(NULL); // { dg-warning "" } converting NULL to int
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45 g(NULL); // { dg-warning "" } converting NULL to int
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46 h<NULL>(); // No warning: NULL bound to integer template parameter
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47 l(NULL); // No warning: NULL is used to implicitly instantiate the template
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48 NULL && NULL; // No warning: converting NULL to bool is OK
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49 }
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50
131
84e7813d76e9 gcc-8.2
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51 void warn_for___null()
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52 {
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53 int i = __null; // { dg-warning "" } converting __null to non-pointer type
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54 float z = __null; // { dg-warning "" } converting __null to non-pointer type
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55 int a[2];
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56
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57 i != __null; // { dg-warning "" } __null used in arithmetic
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58 __null != z; // { dg-warning "" } __null used in arithmetic
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59 k != __null; // No warning: decay conversion
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60 __null != a; // Likewise.
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61 -__null; // { dg-warning "" } converting __null to non-pointer type
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62 +__null; // { dg-warning "" } converting __null to non-pointer type
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63 ~__null; // { dg-warning "" } converting __null to non-pointer type
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64 a[__null] = 3; // { dg-warning "" } converting __null to non-pointer-type
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65 i = __null; // { dg-warning "" } converting __null to non-pointer type
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66 z = __null; // { dg-warning "" } converting __null to non-pointer type
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67 k(__null); // { dg-warning "" } converting __null to int
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68 g(__null); // { dg-warning "" } converting __null to int
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69 h<__null>(); // No warning: __null bound to integer template parameter
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70 l(__null); // No warning: __null is used to implicitly instantiate the template
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71 __null && __null; // No warning: converting NULL to bool is OK
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72 }
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73
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74 int main()
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75 {
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76 warn_for_NULL();
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77 warn_for___null();
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78 }