小编Bra*_*don的帖子

@ECHO OFF

SET backdir=backup
SET snapshotdir=snapshots
SET worldprefix=world_
SET itdate=%date:~10,4%-%date:~4,2%-%date:~7,2%
SET hour=%time:~0,2%

IF "%hour:~0,1%" == " " SET hour=0%hour:~1,1%

echo Current date: %itdate%. Current hour: %hour%. Current Minute:Second: %time:~3,2%:%time:~6,2%

    forfiles /m "%worldprefix%*" /c (
        echo Copying World: @path
        cmd /c xcopy /e /c /h /i /v /r /y /q @file %snapshotdir%\@file\%itdate%-%hour%-%time:~3,2%-%time:~6,2%
        cmd /c xcopy /e /c /h /i /v /r /y /q @file %backdir%\%itdate%D\worlds\@file
     )

echo Copying Plugins
xcopy /e /c /h /i /v /r /y /q plugins %backdir%\%itdate%D\plugins\
xcopy …

I am trying to install the cryptography module for python yet I keep getting errors and so far I have been able to solve each one as they come including:

1. error: Unable to find vcvarsall.bat
2. mysql-python install problem using virtualenv, windows, pip
3. Installing lxml for Python 3.4 on Windows x 86 (32 bit) with Visual Studio C++ 2010 Express
4. Failing to run pip install cryptography on Windows 7

However I have ran into an error that no matter how hard …

我正在尝试并行复制矩阵。下面是我正在使用的代码。目前，它可以与char一起正常工作，但是当我使用短裤时它会出现段错误。我认为错误在于复制向量之外的内存。我试图调试我的假设，但没有成功。

CMakeLists.txt

cmake_minimum_required(VERSION 3.0)
project(memcpy CXX)
find_package (Threads)
add_executable(memcpy main.cpp)
set_property(TARGET memcpy PROPERTY CXX_STANDARD 17)
target_link_libraries (memcpy ${CMAKE_THREAD_LIBS_INIT})

main.cpp

#include <cassert>
#include <condition_variable>
#include <cstring>
#include <iostream>
#include <mutex>
#include <string>
#include <thread>
#include <vector>


class Barrier {
  public:
    explicit Barrier(std::size_t const count) : m_threshold(count), m_remaining(count), m_generation(0) {}

    void wait() {
        auto local = std::unique_lock<std::mutex>{m_mutex};
        auto current_generation = m_generation;

        m_remaining--;
        if (!m_remaining) {
            m_generation++;
            m_remaining = m_threshold;
            m_condition.notify_all();
        } else {
            m_condition.wait(local, [this, current_generation] { return current_generation != m_generation; }); …