内存泄漏

VLD

代码

Release版本下检测内存泄漏配置

#define VLD_FORCE_ENABLE
#include 
#pragma comment(lib, "vld.lib")
int main()
{
    VLDGlobalEnable();
    VLDReportLeaks();
    int* p = new int;
    VLDGlobalDisable();
}

结果

WARNING: Visual Leak Detector detected memory leaks!
---------- Block 1 at 0x00000000DC071C60: 4 bytes ----------
  Leak Hash: 0x14FC14D1, Count: 1, Total 4 bytes
  Call Stack (TID 181776):
    ucrtbase.dll!malloc_base()
    D:\a01\_work\26\s\src\vctools\crt\vcstartup\src\heap\new_scalar.cpp (35): ConsoleApplication4.exe!operator new() + 0x8 bytes
    C:\Users\Nova001845\source\repos\ConsoleApplication4\ConsoleApplication4\ConsoleApplication4.cpp (64): ConsoleApplication4.exe!main()
    D

Dr. Memory

配置

对于 Visual Studio，选择Tools | External Tools...菜单选项以打开“外部工具”对话框。单击添加并填写如下字段（drmemory.exe如果您将其安装在其他位置，请调整路径）

Title: Dr. Memory
Command: C:\Program Files (x86)\Dr. Memory\bin\drmemory.exe
Arguments: -visual_studio -- $(TargetPath)
Initial Directory: $(TargetDir)

代码

int main()
{
    int* p = new int;
}

运行

现在可以选择Tools | Dr. Memory，Visual Studio 将运行应用程序。Dr. Memory 的输出（连同程序）将打印到输出窗口。可以双击任何调用堆栈框架上的源文件，以便自动打开该文件到指定的行号。

结果

         Dr. Memory version 2.5.0
         Running "C:\Users\Nova001845\source\repos\ConsoleApplication4\x64\Release\ConsoleApplication4.exe"
         Using system call file C:\Users\Nova001845\Downloads\DrMemory-Windows-2.5.0\DrMemory-Windows-2.5.0\drmemory\logs\symcache\syscalls_x64.txt
         
         Error #1: LEAK 4 bytes 
         replace_operator_new
             d:\a\drmemory\drmemory\common\alloc_replace.c(2903):
         main                   
             C:\Users\Nova0018