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shared_ptr指针被赋值后，原指针会引用清零、自动释放。 - C/C++ - 清泛网 ...
...被赋值后，原指针会引用清零、自动释放。std::shared_ptr<int> intg;void foo(std::shared_ptr<int> p){ ...shared_ptr指针被赋值后，原指针会引用清零、自动释放。
std::shared_ptr<int> intg;
void foo(std::shared_ptr<int> p)
{
intg = p; // 原指...
error C2664: “std::list::list(const std::allocator &)”: 不能将参数 1...
...const std::allocator<_Ty> &”
with
[
_Ty=int
]
原因如下: 无法从“std::vector<_Ty>”转换为“const std::allocator<_Ty>”
with
[
_Ty=int
]
没有可用于执行该转换的用户定义的转...
jsoncpp 不能处理__int64(long long)类型数据 - C/C++ - 清泛网 - 专注C/C++及内核技术
jsoncpp 不能处理__int64(long long)类型数据jsoncpp，是一个c++的解析和生成json的开源工具。如果你的c++程序需要解析或生成json，它会使这个过程变得很简单！但是，今天在用jsoncpp进...jsoncpp，是一个c++的解析和生成json的开源工具。如...
Reverse of JSON.stringify?
...
I read the OP as saying "I converted a javascript object to a JSON string, and now I want to convert it back - how do I do it?" All the other answers say just use JSON.parse. I'm just warning that theres a lot of cases that will not handle correctly. I...
Catch Ctrl-C in C
...lipping a bool used in main():
#include <signal.h>
static volatile int keepRunning = 1;
void intHandler(int dummy) {
keepRunning = 0;
}
// ...
int main(void) {
signal(SIGINT, intHandler);
while (keepRunning) {
// ...
Edit in June 2017: To whom it may concern, particul...
CoInitialize浅析一 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
... push esi
769AEFA3 push edi ; __int32
769AEFA4 push ebx ; unsigned __int32
769AEFA5 xor esi, esi
769AEFA7 inc esi
769AEFA8 push esi ; int
769AEFA9 ...
Calling Objective-C method from C++ member function?
...dard C wrapper function that gives the Objective-C object a usable C-style interface from non-Objective-C code (pick better names for your files, I have picked these names for verbosity):
MyObject-C-Interface.h
#ifndef __MYOBJECT_C_INTERFACE_H__
#define __MYOBJECT_C_INTERFACE_H__
// This is the C...
Where is array's length property defined?
...myArray.length ([]) provides the "capacity". That is, if for myArray = new int[10];, it returns 10. It is not the number of objects you've put in the array.
– wmorrison365
Feb 16 '12 at 13:15
...
Replace selector images programmatically
...:
StateListDrawable states = new StateListDrawable();
states.addState(new int[] {android.R.attr.state_pressed},
getResources().getDrawable(R.drawable.pressed));
states.addState(new int[] {android.R.attr.state_focused},
getResources().getDrawable(R.drawable.focused));
states.addState(new int...
Is inline assembly language slower than native C++ code?
... assembly you have to make well-defined functions with a well-defined call interface. However they can take in account whole-program optimization and inter-procedural optimization such
as register allocation, constant propagation, common subexpression elimination, instruction scheduling and other c...