#define MACRO_NAME value 宏定义后,预处理器会在编译之前将所有MACRO_NAME替换为相应的value。 条件编译 #ifdef MACRO_NAME // 代码块1 #else // 代码块2 #endif 根据MACRO_NAME是否被定义,选择不同的代码块进行编译。 二、利用__FILE__宏和字符串化操作 __FILE__宏在预处理器运行时展开成当前源文件的...
🔖#define定义宏 #define机制包括了一个规定,允许把参数替换到文本中,这种实现通常称为宏(macro)或定义宏(#define macro)。语法: ●name是宏的名字 ●parament-list是一个用逗号隔开的符号表,它们可能会出现在stuff中(类似于参数,没有类型) ●stuff会用parament-list来实现一定的功能 注意:参数列表必须的左括号...
#include <iostream> extern int start_program(int, const char**); using namespace std; int main() { auto exit_code = start_program(0, nullptr); if (exit_code == 0) cout << "Non-zero exit code expected" << endl; const char* arguments[2] = {"hello", "world"}; exit_code = ...
expanded from macro '__mix__' #define __mix__ [mix] ^ /home/xiaohoua/high_test/1-matmul-prelu/Matmul_PRelu/main.cpp:17:8: warning: 'cce_kernel' attribute only applies to functions [-Wignored-attributes] extern __global__ __mix__ void matmul_prelu_custom(GM_ADDR param1, GM_ADDR...
作为例外,默认情况下允许使用 new 的宏形式,因为标头通过使用 #pragma push_macro("new")/#undef new/#pragma pop_macro("new") 全面地保护自己。 定义 _ENFORCE_BAN_OF_MACRO_NEW 所执行的操作正如其名称所示。 为了实现各种优化和调试检查,C++ 标准库实现特意中断了 Visual Studio 各版本(2005、2008、2010...
BASE_NAME "message" EXPORT_MACRO_NAME "message_EXPORT" EXPORT_FILE_NAME "${CMAKE_BINARY_DIR}/${INSTALL_INCLUDEDIR}/messageExport.h" DEPRECATED_MACRO_NAME "message_DEPRECATED" NO_EXPORT_MACRO_NAME "message_NO_EXPORT" STATIC_DEFINE "message_STATIC_DEFINE" ...
"unresolved external symbol" error when accessing a static member of a template class inside a DLL “Error: type name is not allowed” message in editor but not during compile [ WinSocket 2 ] Flush socket [C\C++] - how get arrow keys(correctly) using getch()? [C\C++] - how put the...
LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam){switch (uMsg){case WM_SIZE:{int width = LOWORD(lParam); // Macro to get the low-order word.int height = HIWORD(lParam); // Macro to get the high-order word.// Respond to the message:OnSize(hwnd, (UI...
Compiler warning (level 1) C4642 'class': could not import the constraints for generic parameter 'name' Compiler warning (level 4, off) C4643 Forward declaring 'identifier' in namespace std is not permitted by the C++ Standard. Compiler warning (level 1) C4644 usage of the macro-based of...
This macro is misnamed: it should have been ScreenCells. DisplayHeight(display,scr_num) Return the height in pixels of the screen. This macro is misnamed: it should have been ScreenHeight. DisplayHeightMM(display,scr_num) Return the height in millimeters of the specified screen. This macro...