Numeric conversion action for the C + + string class

Source: Internet
Author: User

Implements a conversion between a standard library string and numeric data.

int45;string s = to_string(a);//将整数转换为string表示形式double d = stod(s);//将字符转换为浮点数

Other functions:

stoi(s, p, b);//返回s字符串的整数表达的数值。依次为 int, long ,unsigned long, long long, unsigned long long      stol(s, p, b);// b 是转换的基数 默认为 10    stoul(s, p, b);// p 为 size_t指针,保存s中第一个非数值字符下标,初始为0,即函数不保存下标    stoll(s, p, b);    stoull(s, p, b);//    stof(s,p);//返回s字符串的浮点数表达的数值。依次为 float, double, long double    stod(s,p);// p 为 size_t指针,保存s中第一个非数值字符下标,初始为0,即函数不保存下标    stold(s,p);

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Numeric conversion action for the C + + string class

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