char my_tolower(char ch) { return static_cast<char>(std::tolower(static_cast<unsigned char>(ch))); }类似地,迭代器的值类型为 char 或signed char 时,不应直接将它们用于标准算法。而是要首先转换值为 unsigned char: std::string str_tolower(std::string s) { std::transform(s.begin(), s...
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表达式::tolower指名的是全局命名空间内的函数tolower。表达式::std::cout指名std命名空间(顶层命名空间)中的全局变量cout。表达式boost::signals2::connection指名的是在signals2命名空间中声明的类型connection,前者则在命名空间boost声明。 有限定标识符中,可能会需要以关键词template来消除待决模板名的歧义。
std::ctype<CharT>::tolower,std::ctype<CharT>::do_tolower From cppreference.com <cpp |locale |ctype Defined in header<locale> public: CharT tolower(CharT c)const; (1) public: constCharT*tolower(CharT*beg,constCharT*end)const; ...
tolower(std::locale) converts a character to lowercase using thectypefacet of a locale (function template) String and stream conversions wstring_convert (C++11)(deprecated in C++17)(removed in C++26) performs conversions between a wide string and a byte string ...
tolower Returns the lowercase equivalent of its argument. 3.2. C-String Functions #include <cstring> // required for using the functions below strlen // don't confuse the length of a string with the size of the array holding it char name[] = "banana"; int length = strlen(name); //...
Go to the source code of this file. Functions stringgetModelText() Get model as string. stringtoLower(const string &str) Convert string to lower case. voidGUSSCall(GAMSSetdict,GAMSModelInstancemi, string solveStatement,gams::GAMSOptions*opt=nullptr,gams::GAMSModelInstanceOptmiOpt=gams::GAMSMod...
136 // todo: create method toLowerCase? 137 if (str[0] != 'p' && str[0] != 'P') { 138 return Gpio::Invalid; 139 } 140 char port = str[1]; 141 brain_pin_e basePin; 142 if (port >= 'a' && port <= 'z') { 143 basePin = Gpio::A0 + PORT_SIZE * (port - 'a...
引用 C11 standard (ISO/IEC 9899:2011): 7.30.3.1.1 The towlower function (p: 453) C99 standard (ISO/IEC 9899:1999): 7.25.3.1.1 The towlower function (p: 399) 参阅 towupper(C95) 将宽字符转换为大写(函数) tolower 将字符转换成小写(函数) towlower 的 C++ 文档 ...
因为setlocale修改影响依赖本地环境的函数执行的全局状态,故而一个线程调用它,同时另一个线程执行任何下列函数是未定义行为:fprintf、 isprint、 iswdigit、 localeconv、 tolower、 fscanf、 ispunct、 iswgraph、 mblen、 toupper、 isalnum、 isspace、 iswlower、 mbstowcs、 towlower、 isalpha、 isupper、 iswprint、...