diff options
Diffstat (limited to 'www/analyzer/potential_checkers.html')
| -rw-r--r-- | www/analyzer/potential_checkers.html | 83 |
1 files changed, 11 insertions, 72 deletions
diff --git a/www/analyzer/potential_checkers.html b/www/analyzer/potential_checkers.html index 04bf9fe45d09..c769541e70d8 100644 --- a/www/analyzer/potential_checkers.html +++ b/www/analyzer/potential_checkers.html @@ -62,43 +62,6 @@ void test() { </pre></td><td class="aligned"><a href="http://llvm.org/bugs/show_bug.cgi?id=15238">PR15238</a> </td></tr> -<tr><td><span class="name">memory.MismatchedDelete -<br>(C, C++)</span><br><br> -Mismatched deallocation function is used -</td><td><pre> -#include <stdlib.h> - -void test() { - int *p1 = new int; - int *p2 = new int[1]; - int *p3 = (int*)malloc(sizeof(int)); - - delete[] p1; // warn - delete p2; // warn - delete p3; // warn -} -</pre></td><td class="aligned"><a href="http://llvm.org/bugs/show_bug.cgi?id=15238">PR15238</a> -</td></tr> - -<tr><td><span class="name">memory.MultipleDelete -<br>(C++)</span><br><br> -Attempt to deallocate released memory -</td><td><pre> -#include <new> - -void test() { - int *p1 = new int; - int *p2 = new(p1) int; - int *p3 = p1; - delete p1; - delete p1; // warn - delete p2; // warn - delete p3; // warn -} -</pre></td><td class="aligned"><a href="http://llvm.org/bugs/show_bug.cgi?id=15237">PR15237</a> -</td></tr> - - <tr><td><span class="name">memory.LeakPtrValChanged <br>enhancement to unix.Malloc<br>(C, C++)</span><br><br> Potential memory leak: a pointer to newly allocated data loses its original @@ -124,31 +87,6 @@ void test() { </pre></td><td class="aligned">done at r174678 (C case) </td></tr> - -<tr><td><span class="name">memory.DeallocateNonPtr -<br>enhancement to unix.Malloc<br>(C, C++)</span><br><br> -Deallocation function is applied to non-pointer -</td><td><pre> -#include <stdlib.h> - -class A { - int *p; -public: - operator int *() { return p; } -}; - -void test() { - A a; - delete a; // warn - free(a); // warn - const char *s = "text"; - delete s; // warn - free(s); // warn -} -</pre></td><td class="aligned"><a href="http://llvm.org/bugs/show_bug.cgi?id=15237">PR15237</a> -</td></tr> - - <tr><td><span class="name">memory.LeakEvalOrder<br> (C, C++)</span><br><br> Potential memory leak: argument evaluation order is undefined, g() may never be called @@ -232,6 +170,17 @@ class A { }; </pre></td><td class="aligned"></td></tr> +<tr><td><span class="name">ctordtor.PlacementSelfCopy<br> +(C++11)</span><br><br> +For a placement copy or move, it is almost certainly an error if the constructed object is also the object being copied from. +</td><td><pre> +class A {}; + +void test(A *dst, A *src) { + ::new (dst) A(*dst); // warn (should be 'src') +} +</pre></td><td class="aligned"><!--rdar://problem/13688366--></td></tr> + </table> <!-- ============================== exceptions ============================= --> @@ -1276,16 +1225,6 @@ void test() { } </pre></td><td class="aligned"></td></tr> -<tr><td><span class="name">different.UnaryPlusWithUnsigned -<br>(C)</span><br><br> -Using 'unary +' with unsigned is meaningless -</td><td><pre> -void test() { - unsigned a; - a = +a; // warn -} -</pre></td><td class="aligned"></td></tr> - <tr><td><span class="name">different.LogicalOpUselessArg <br>(C)</span><br><br> The second operand of the && operator has no impact on expression result |