大约有 23,000 项符合查询结果（耗时：0.0355秒） [XML]
What's the difference between the atomic and nonatomic attributes?
...cks Another fun one; on certain architectures (Can't remember which one), 64 bit values passed as an argument might be passed half in a register and half on the stack. atomic prevents cross-thread half-value reads. (That was a fun bug to track down.)
– bbum
...
What's the best way to check if a file exists in C?
...(so does lstat(), but fstat() is safe). It depends what you're going to do based on the presence or absence of the file. Using the correct options to open() is usually the best way of dealing with the problems, but it can be tricky formulating the right options. See also discussions on EAFP (Easie...
How can I auto-elevate my batch file, so that it requests from UAC administrator rights if required?
...ically check & get admin rights
:: see "https://stackoverflow.com/a/12264592/1016343" for description
::::::::::::::::::::::::::::::::::::::::::::
@echo off
CLS
ECHO.
ECHO =============================
ECHO Running Admin shell
ECHO =============================
:init
setlocal DisableDela...
How to convert wstring into string?
...
Here is a worked-out solution based on the other suggestions:
#include <string>
#include <iostream>
#include <clocale>
#include <locale>
#include <vector>
int main() {
std::setlocale(LC_ALL, "");
const std::wstring ws =...
How can I divide two integers to get a double?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
C/C++中的段错误（Segmentation fault） - C/C++ - 清泛网 - 专注C/C++及内核技术
...read-only location, or to overwrite part of the operating system). Systems based on processors like the Motorola 68000 tend to refer to these events as Address or Bus errors.
Segmentation is one approach to memory management and protection in the operating system. It has been superseded by pagi...
How do I escape reserved words used as column names? MySQL/Create Table
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
Heap vs Binary Search Tree (BST)
... can be efficiently implemented on top of either dynamic arrays or pointer-based trees, BST only pointer-based trees. So for the heap we can choose the more space efficient array implementation, if we can afford occasional resize latencies.
binary heap creation is O(n) worst case, O(n log(n)) for BS...
How to declare a friend assembly?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
How can you escape the @ character in javadoc?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...