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How fast is D compared to C++?
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You are losing features which C++ never had. Most languages don't give you a choice.
– Vladimir Panteleev
Feb 28 '11 at 13:45
6
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C++ equivalent of StringBuffer/StringBuilder?
Is there a C++ Standard Template Library class that provides efficient string concatenation functionality, similar to C#'s StringBuilder or Java's StringBuffer ?
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Where does Visual Studio look for C++ header files?
I checked out a copy of a C++ application from SourceForge (HoboCopy, if you're curious) and tried to compile it.
6 Answers...
Use JNI instead of JNA to call native code?
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JNA does not support mapping of c++ classes, so if you're using c++ library you will need a jni wrapper
If you need a lot of memory copying. For example, you call one method which returns you a large byte buffer, you change something in it, then you need to...
What is a C++ delegate?
What is the general idea of a delegate in C++? What are they, how are they used and what are they used for?
6 Answers
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C++ template中typename和class的区别 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++ template中typename和class的区别历史原因,以前是用class,后来C++ Standard 出现后,引入了typename, 所以他们是一样的。但是,又有一些微妙的不同,因为有时候,你不得不使用typename。历史原因,以前是用class,后来C++ Standard 出现...
c++文件流基本用法(ifstream, ostream,fstream) - C/C++ - 清泛网 - 专注C/C++及内核技术
c++文件流基本用法(ifstream, ostream,fstream)需要包含的头文件: <fstream>名字空间: stdfstream提供了三个类,用来实现c++对文件的操作。(文件的创建,读写)。ifstream -- 从已...需要包含的头文件: <fstream>,名字空间: std。
fstream提供...
Linux C++ 单元测试与gcov代码覆盖率统计 - C/C++ - 清泛网 - 专注C/C++及内核技术
Linux C++ 单元测试与gcov代码覆盖率统计gtest-and-coverage本文主要介绍Linux下C++单元测试下的代码覆盖率统计的方法,测试框架采用gtest,当然也可以使用其他的,这里不做过多的说明,主要介绍代码的覆盖率统计方法。一、什么是gco...
Linux C++静态链接protobuf库异常中止 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
Linux C++静态链接protobuf库异常中止static-linking-with-generated-protobufs-causes-abort我有一个项目,它将c++生成的protobuf序列化程序编译到静态库中。可执行文件与此库链接,而 so( dll)也是如此。可执行文件稍后会加载 so文件。发生这种情...
Count character occurrences in a string in C++
...r c in string s
Check if c equals '_'
If yes, increase count
EDIT: C++ example code:
int count_underscores(string s) {
int count = 0;
for (int i = 0; i < s.size(); i++)
if (s[i] == '_') count++;
return count;
}
Note that this is code to use together with std::string, if you...