字符串十进制小数转换成字符串二进制小数

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输入一个字符串，字符串内容为十进制小数，将其转换为二进制小数，如果不能转换则返回error。

#include <iostream>#include <math.h>#include <string>#include <sstream>using namespace std;template <class T> string m_toStr(T tmp){    stringstream ss;    ss << tmp;    return ss.str();}int main() {string n="3.75";stringstream stream;int intPart;double decPart;stream << n.substr(0,n.find('.'));stream >> intPart;stream.clear();stream << n.substr(n.find('.'),n.length());stream >> decPart;string int_string = "";while(intPart > 0){int r = intPart % 2;intPart >>=1;int_string = m_toStr(r) + int_string;}string dec_string = "";while(decPart > 0){if(dec_string.size() > 32) {cout<<"error";return 0;}if(decPart == 1){dec_string += m_toStr(decPart);break;}double r = decPart * 2;if(r>=1){dec_string += '1';decPart = r - 1;}else{dec_string +='0';decPart = r;}}cout<< int_string +'.'+dec_string <<'\n';}

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