char*return_buffer(conststd::string&string) { char* return_string =newchar[string.length() +1];strcpy(return_string,string.c_str());returnreturn_string; }//now use in codeintmain() {std::stringsome_string ="Stuff"; char* buffer =return_buffer(some_string);//...do something with b...
const char*是一个指向常量字符的指针,在C++中常用于表示字符串字面量或字符串数据。它指向的是一个字符数组,该数组中的字符是常量,不能被修改。const char*类型的指针广泛用于与C风格的字符串处理函数和API进行交互,因为这些函数和API通常期望字符串以这种格式传递。 2. 为什么会出现“cannot convert 'string' t...
I am trying to convert a std::string to a const char*. This is with GetHostByName(). Any help is appreciated. This is what I have sp far. 12345678910 int Newlength = WideCharToMultiByte (CP_ACP, WC_COMPOSITECHECK, wsURL.c_str(), -1, NULL, 0, NULL, NULL); std::string NewLogURL...
If you want a copy of the string for later destruction, then I would probably do something more like:prettyprint Копировать const char* CSVMTrainDlg::convtCStrToChar(CString const & strParam) { CStringA cstraParam(strParam); size_t len = cstraParam.GetLength()+1; char ...
Convert string to const * char for ofstream. Feb 16, 2011 at 8:55am cppmatt (37) So I am just playing around, changing things to see what happens when I do (I learn this way). I know this isn't how one should do it, but I wondered how I could get this to work. This is...
I want to convert std::string into a const char in a simple and understandable way. Mar 30, 2016 at 1:32am JLBorges (13770) 1234 const std::string str = "hello world!" ; // http://en.cppreference.com/w/cpp/string/basic_string/c_str const char* cstr = str.c_str() ; //...
Hi, I need to implement that feature to interact System.string with C++ string, any idea of that? Found no api to do that, don't wanna implement in C# side, but I reckon conversion in C++ side should be more efficient. desc: //a System.String obj char *str = obj.c_str(); jack...
路径改成 char*后,将string类型转化为char*. 提示string类型直接赋值给char* 错误: error C2440: '=' : cannot convert from 'const char *' to 'char *' 更正方法: 将char* 定义为 const char* 即可. 代码: string imbagFilePath="G:\\WorkSpace\\FileOperation\\fluor1_AjaxOrange_078.imbag"; ...
Cstring.GetBuffer() 搞定
//using namespace System::Runtime::InteropServices;System::String * str = S"Hello world\n";char* str2 = (char*)(void*)Marshal::StringToHGlobalAnsi(str);printf(str2); Marshal::FreeHGlobal(str2); หมายเหตุ In Visual C++ 2005 and in Visual C++ 2008, you...