在此利用STL的transform配合toupper/tolower,完成std::string轉換大(小)寫的功能,也看到Generics的威力,一個transform function,可以適用於任何型別,且只要自己提供Algorithm,就可完成任何Transform的動作。
本例主要演示C语言中的各种string操作方法,包括std::tolower,std::toupper,std::isalpha,std::isalnum,等等。 代码如下,...
std::string s = "hello world"; std::cout<<s<<std::endl; for (std::string::size_type ix = 0; ix != s.size(); ++ix) s[ix] = '*'; std::cout<<"Now s is:"<<s<<std::endl; std::cout<<"s's len is:"<<s.size()<<", s[12]="<<s[100]<<std::endl; return 0...
std::string s = "hello world"; std::cout<<s<<std::endl; for (std::string::size_type ix = 0; ix != s.size(); ++ix) s[ix] = '*'; std::cout<<"Now s is:"<<s<<std::endl; std::cout<<"s's len is:"<<s.size()<<", s[12]="<<s[100]<<std::endl; return 0...
std::hex << std::setfill('0') << std::setw(2) << (upper_case ? std::uppercase : std::nouppercase) << (int)s[i]; return ret.str();}int FromHex(const string &s)...
編譯器警告 (層級 3) C4424'type1' 的攔截之前是 'type2' (第number行);如果擲回 'std::bad_alloc',可能發生無法預期的行為 編譯器警告 (層級 1) C4425無法將 SAL 註釋套用至 '...' 編譯器警告 (層級 1) C4426最佳化旗標在加入標頭之後有所變更,可能是因為 #pragma optimize() 所致...
CONSOLE_SCREEN_BUFFER_INFO csbiInfo;// Console informationCOORD consoleSize; BOOL bTrails = FALSE; HANDLE hThreads[MAX_THREADS] = {NULL};// Handles for created threadsintmain(void)// Thread One{// Get display screen information & clear the screen.hConsoleOut = GetStdHandle(STD_OUTPUT_...
CMAKE_C_FLAGS*.C文件编译选项,如-std=c99 -O3 -march=native CMAKE_CXX_FLAGS*.CPP文件编译选项,如-std=c++11 -O3 -march=native CMAKE_CURRENT_BINARY_DIRtarget编译目录 CMAKE_INCLUDE_PATH环境变量,非cmake变量 CMAKE_LIBRARY_PATH环境变量
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