解码从Valgrind的输出(Decoding output from valgrind)

我想了解从Valgrind的输出具有如下执行它：的valgrind --leak检查= YES“someprogram”

输出是在这里：

==30347== 
==30347== HEAP SUMMARY:
==30347==     in use at exit: 126,188 bytes in 2,777 blocks
==30347==   total heap usage: 4,562 allocs, 1,785 frees, 974,922 bytes       
        allocated
==30347== 
==30347== LEAK SUMMARY:
==30347==    definitely lost: 0 bytes in 0 blocks
==30347==    indirectly lost: 0 bytes in 0 blocks
==30347==      possibly lost: 0 bytes in 0 blocks
==30347==    still reachable: 126,188 bytes in 2,777 blocks
==30347==         suppressed: 0 bytes in 0 blocks
==30347== Reachable blocks (those to which a pointer was found) are   
          not shown.
==30347== To see them, rerun with: --leak-check=full --show-reachable=yes
==30347== 
==30347== For counts of detected and suppressed errors, rerun with: -v
==30347== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 2 from 2)

根据输出没有丢失字节，但人们似乎仍可达块。所以，我有内存泄漏？

在此先感谢您的帮助。

没有。

您最关心的可达块。你在这里看到的是，有仍在“指点”在内存可达块活动变量。他们仍然在范围内。

不可到达的块将是，例如，记忆您已经动态分配，使用一段时间，然后所有的引用它已经出来的，即使程序仍在执行的范围。既然你不再有指向他们的任何手柄，他们现在无法恢复，造成内存泄漏。

下面是从报价Valgrind的文档：