如何将std::ostringstream转换为LPCSTR
std::ostringstream oss;
[...]
LPCSTR result = oss.str();
结果:Error: No suitable conversion function from "std::basic_string<char, std::char_traits<char>, std::allocator<char>>" to "LPCSTR" exists
我希望将一些私有库class ns::A输出到plog,因此我将operator <<重载添加到ns::A中。
无法编译下列代码。
error: no match for ‘operator<<’ (operand types are ‘std::ostringstream’ {aka ‘std::__cxx11::basic_ostringstream<char>’} and ‘const ns::A’)
out << t;
~~~~^~~~
但是将名称空间other更改为ns、plog、plog::detail或std会使
(参见前迭代。)
现在,我已经定义了一个迭代器,用于转储序列的内容,以便最后一个元素后面没有分隔符字符串。
main.cpp
#include <algorithm>
#include <iostream>
#include <iterator>
#include <sstream>
#include <string>
#include <vector>
using std::cout;
using std::endl;
using std::for_each;
using std::vector;
using nam
为什么~/.sbt/0.13/plugins/build.sbt中定义的插件不包括在sbt tasks -V列表中?
jacek:~/oss/scalania
$ sbt about
[info] Loading global plugins from /Users/jacek/.sbt/0.13/plugins
[info] Loading project definition from /Users/jacek/oss/scalania/project
[info] Set current project to scalania (in build file:/Users/jacek/os
我使用play new hello命令创建了一个新的应用程序,并在目录中输入cd。当我在目录中键入play时,我收到以下错误:
akshay@Akshay:~/play/testn$ play -help
Java HotSpot(TM) Server VM warning: ignoring option MaxPermSize=512M; support was removed in 8.0
Getting org.scala-sbt sbt 0.13.0 ...
:: retrieving :: org.scala-sbt#boot-app
confs: [default]
我正在尝试为AWS键空间编写一个Spark。随机地,有些记录正在更新,有些记录正在抛出此异常。
com.datastax.oss.driver.api.core.type.codec.CodecNotFoundException: Codec not found for requested operation: [INT <-> java.lang.String]
at com.datastax.oss.driver.internal.core.type.codec.registry.CachingCodecRegistry.createCodec(CachingCodecRegi
我有一些代码想要回馈给‘世界’,开源世界。
我想把它放在sonatype.com的“中央存储库”上。
我的问题是,基于我在公司的代码库,以及我将远程/贡献给sonatype开源的名称,什么是一个好的存储库名称?
示例:
(would be in company's private repository)
com.mycompanyname
com.mycompanyname.variousnamesandprojects.blah.blah
(would be in company's private repository)
com.mycompanyname.common
#include <sstream>
#include <string>
using namespace std;
template<typename T>
string ToString(const T& obj)
{
ostringstream oss;
oss << obj;
//
// oss will never be used again, so I should
// MOVE its underlying string.
//
// However, below
因为我正致力于在Suse机器上自动化补丁过程。我想对包的状态生命周期有一个更清晰的印象。
首先,我试图列出可用的修补程序及其新版本,只需运行:
$ zypper list-updates
Loading repository data...
Warning: Repository 'NON OSS Update' appears to be outdated. Consider using a different mirror or server.
Warning: Repository 'OSS Update' appears to be outdated.
我正在尝试开发我的第一个Drupal 8模块,我不明白为什么在我的小枝模板中没有定义jQuery。
在我的块中,我调用控制器函数:
public function build() {
$config = $this->getConfiguration();
$slider = new OsTouchController;
return $slider->displaySlider($config['id']);
}
然后在控制器中:
public function displaySlider($slider_id) {
$o
我有四节课
class A { //a base class
public:
A(ostringstream* os){ oss2=os; }
ostringstream* oss2;
};
class B : public A{ // a derived class
public:
B(ostringstream* os):A(os){};
};
class C { //class where oss is actually declared
public:
C(){};
ostringstream oss;
};
最后(