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error: ‘std::ios_base::ios_base(const std::ios_base&)’ is private ...
...流的复制。
错误代码示例：
#include <iostream>
#include <string>
struct Person {
std::string name;
Person(std::string n):name(n){}
};
// should return a reference to std::ostream
std::ostream operator<<(std::ostream& s,const Person &p) {
s << p.name;
return s;
}
...
ifstream 线程安全读文件 - C/C++ - 清泛网 - 专注C/C++及内核技术
...件函数 safeGetline：std::istream& safeGetline(std::istream& is, std::string& t){ t clear(); 使用std::streambuf 函数 safeGetline：
std::istream& safeGetline(std::istream& is, std::string& t)
{
t.clear();
//这比使用std::istream逐个读取它们要快。
//以...
Oracle中translate与replace的使用 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...length(trim(a.t_no));
2.replace
语法：REPLACE(char, search_string,replacement_string)
用法：将char中的字符串search_string全部转换为字符串replacement_string。
举例：SQL> select REPLACE('fgsgswsgs', 'fk' ,'j') 返回值 from dual;
返...
bat 写注册表详解 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...对我们的应用有所帮助。
[MY.ADD.REG]
HKCU,MYKEY,MYVALUE,0,"STRING" 添加名为MYVALUE的字符串值项到键MYKEY下其值设为STRING
HKCU,MYKEY,MYVALUE,,STRING 添加名为MYVALUE的字符串值项到MYKEY，将其值设为STRING
HKCU,MYKEY,MYVALUE,1,77,34,05,20 添加名为MYV...
无法将类型“System.Collections.Generic.List”隐式转换为“System.Collec...
...lections.Generic.List”隐式转换为“System.Collections.ArrayListList<string> list = new List<string>();.........ArrayList al = new ArrayList();al.AddRange(list);如果单纯转换为对象数组，直接调用 list.ToArray() 方法。
List<string> list = new List<string>();
.........
ArrayL...
boost库编译问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
boost库编译问题boost::property_tree::xml_writer_settings<std::string> settings(' t', 1, "GB2312");报错：char不能转换为std::string。1.5...boost::property_tree::xml_writer_settings<std::string> settings('\t', 1, "GB2312");
报错：char不能转换为std::string。
1.54 版本 报...
c++ boost库 序列化与反序列化 - c++1y / stl - 清泛IT社区，为创新赋能！
...
#ifndef STRUCT_SAVE_LOAD_H_
#define STRUCT_SAVE_LOAD_H_
//
#include <string>
#include <fstream>
//
#include "boost/archive/text_iarchive.hpp"
#include "boost/archive/text_oarchive.hpp"
#include "boost/archive/xml_iarchive.hpp"
#include "boost/archive/x...
How to parse a CSV file in Bash?
...
We can parse csv files with quoted strings and delimited by say | with following code
while read -r line
do
field1=$(echo $line | awk -F'|' '{printf "%s", $1}' | tr -d '"')
field2=$(echo $line | awk -F'|' '{printf "%s", $2}' | tr -d '"')
echo $fi...
How does a hash table work?
...s that computers (and their algorithms) deal with numbers better than with strings. So accessing a large array using an index is significantly much faster than accessing sequentially.
As Simon has mentioned which I believe to be very important is that the hashing part is to transform a large space...
Why is “using namespace std;” considered bad practice?
...tons of identifiers, many of which are very common ones (think list, sort, string, iterator, etc.) which are very likely to appear in other code, too.
If you consider this unlikely: There was a question asked here on Stack Overflow where pretty much exactly this happened (wrong function called due ...