摘要：说明：(1)转载请注明出处：http://www.cnblogs.com/opangle/p/4298155.html(2)以下以VS2013为例，并假设VC安装路径为%VC_INSTALL_PATH%（本人的安装目录为D:\Program Files (x86)\Microsoft Visual ... 阅读全文

摘要：There are two different forms of the extern "C" declaration: extern "C" as used above, and extern "C" { … } with the declarations between the braces. The first (inline) form is a declaration with extern linkage and with C language linkage; the second only affects langua 阅读全文

摘要：1、sqlite3_open系列函数：int sqlite3_open( const char *filename, /* Database filename (UTF-8) */ sqlite3 **ppDb /* OUT: SQLite db handle */);int sqlite3_open16( const void *filename, /* Database filename (UTF-16) */ sqlite3 **ppDb /* OUT: SQLite db handle */);int sqlite3_open_v2(... 阅读全文

摘要：《Itanium C++ ABI》文档2.3节中描述：A pointer to data member is an offset from the base address of the class object containing it, represented as a ptrdiff_t. It has the size and alignment attributes of a ptrdiff_t. A NULL pointer is represented as -1.测试一：// test.cpp#include <iostream>#define PRINT(var 阅读全文

摘要：先看一个例子，假设有三个文件：headerA.h、headerB.h、main.cpp，其内容分别如下：// file: headerA.hstruct foo{ int member;};// file: headerB.h#include "headerA.h"// file: main.cpp#include "headerA.h"#include "headerB.h"int main(){ return 0;}其中main.cpp中直接包含了headerA.h头文件，而headerB.h中又再次包含了headerA.h，这使 阅读全文

摘要：1、模板函数中，类型参数必须精确匹配，不支持自动（隐式）类型转换。When we call a function template such as max() for some arguments, the template parameters are determined by the arguments we pass. If we pass two ints to the parameter type T const &, the C++ compiler must conclude that T must be int. Note that no automatic type 阅读全文

摘要：一、编译llvm（同时编译compiler-rt和clang）1、下载llvm代码：svn co http://llvm.org/svn/llvm-project/llvm/trunk llvm2、进入llvm/tools目录，下载clang编译器代码：cd llvm/toolssvn co http://llvm.org/svn/llvm-project/cfe/trunk clang3、进入llvm/projects目录，下载Compiler-RT代码：cd ../.. (back to where you started)cd llvm/projectssvn co http://llv 阅读全文

摘要：C++中有很多绕来绕去的术语，如：指针数组、数组指针、常量指针、指针常量、函数指针、指针函数...，让人看得头晕眼花，就连new这个关键字的使用也有new operator与operator new之分（侯捷翻译的《More Effective C++》条款8中就有描述），但或许C++标准中并没有这么多拗口的术语，只是人们在使用和传播过程中“自造”了它们。其实，我觉得new-expression的使用要比new operator更贴切，也更容易与operator new区分开来，因此下文中将使用new-expression而不使用new operator一词。另外，这里有篇帖子中有关于new 阅读全文