std::string s = "true"; std::istringstream(s) >> std::boolalpha >> b; 但当字符串s为“1”时,上面的代码无法正确转换,此时应该用: bool b; std::string s = "1"; istringstream(s) >> b; 不足:除了加条件判断语句外,暂未找到其它能同时涵盖两种情况的简单方法。
vector<bool>和std::string中数据的内存表示很可能是相同的,除了位和/或字节顺序的可能例外。因此,如...
方法一,使用function template的方式将int转std::string,将double转std:string。#include <iostream>#include <sstream>#include <string>using namespace std;template <class T> void convertFromString(T &, const std::string &);template <class T>...
(const TinyString& other) const; operator std::string() const; //转为字符串 std::string ToString()const; //转为字符串 templatefriend std::ostream & operator<< (std::ostream& os, const TinyString& str); templatefriend bool operator == (const TinyString& s1, const TinyString& s2); ...
// 该函数可以分辨// bool is_valid() [E = Color, V = Color::GREEN]// bool is_valid() [E = Color, V = 1]template<typenameE,EV>constexprstd::string_viewget_enum_value_name(){std::string_viewname{__PRETTY_FUNCTION__,sizeof(__PRETTY_FUNCTION__)-2};for(std::size_ti=name.siz...
bool To_string( String^ source, string &target ) { int len = (( source->Length+1) * 2); char *ch = new char[ len ]; bool result ; { pin_ptr<const wchar_t> wch = PtrToStringChars( source ); result = wcstombs( ch, wch, len ) != -1; ...
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可以通过以下步骤实现: 1. 创建一个空的std::string对象,用于存储转换后的结果。 2. 遍历std::vector<bool>中的每个元素。 3. 对于每个元素,将其转换为bool类型,...
='\r')break;}value=value.substr(0,i+1);}voidtrim(string&value){lTrim(value);rTrim(value);}stringchangeCase(string&value,boollowerCase){int32_tlen=value.length();stringnewvalue(value);for(string::size_type i=0,l=newvalue.length();i<l;++i)newvalue[i]=lowerCase?tolower(newvalue[i]...