我是 C++ 新手,这是我的程序
I am new to C++,here is my program
#include <iostream>
#include <fstream>
#include <algorithm>
#include <vector>
#include <functional>
int main(){
static const double arr[] = {16.0,2.2,77.5,29.0,24.0};
std::vector<double> vec (arr, arr + sizeof(arr) / sizeof(arr[0]) );
std::transform(vec.begin(), vec.end(), vec.begin(),bind2nd(std::minus<double>(), 3.0));
for (auto i = vec.begin(); i != vec.end(); ++i)
std::cout << *i << ' ';
}
当我尝试用 g++ p1.cpp -o p1 编译时
When I try to compile with g++ p1.cpp -o p1
p1.cpp: In function ‘int main()’:
p1.cpp:14:11: error: ‘i’ does not name a type
for (auto i = vec.begin(); i != vec.end(); ++i)
我知道有更多的方法可以打印矢量,但为什么这不起作用?
I know that there more ways to print the vector,but why is this not working?
你应该试试 -std=c++11
.之后工作正常.
You should try with -std=c++11
.
Works fine after that.
./p1
13 -0.8 74.5 26 21
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