如何解释 Valgrind 输出

Question

Valgrind 生成以下消息块：

1,065,024 bytes in 66,564 blocks are definitely lost in loss record 21 of 27
   at 0x4C2B800: operator new[](unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
   by 0x40CA21: compute(Parameters&, Array<double>&) [clone .constprop.71] (array.hpp:135)
   by 0x403E70: main (main.cpp:374)

如何阅读此消息？

main.cpp 第 374 行显示：

results[index] = compute(parameters, weights);

是否恰好在 main.cpp 的第 374 行内存泄漏？它是在 compute() 中泄漏还是在 assignment/indexing 处泄漏到结果中？

Answer 1

Is memory leaked exactly at line 374 of main.cpp?

没有。它仅显示 main 中进行调用的行号，最终导致分配内存的函数和行。

Is it leaked in compute() or maybe at assignment/indexing into results?

它说内存在 compute() 中分配，但在程序退出之前没有在程序中释放。这就是内存泄漏。

如何解释 Valgrind 输出

How to interpret Valgrind output

c++

memory-leaks

valgrind