C++ 检测何时在字符串流的末尾

Detect when at the end of a stringstream

提问by JNevens

I am trying to write a function which will detect when I'm almost at the end of a stringstream, but it doesn't seem to work.

我正在尝试编写一个函数，该函数将检测何时我几乎处于字符串流的末尾，但它似乎不起作用。

Here's some code:

这是一些代码：

std::string path(1.2.3);
int number;
std::stringstream ss(path);
while (!ss.eof()) {
    if (ss.peek() != '.') {
        ss >> number;
        if (ss.tellg() == path.length()) {
            std::cout << "Last one: " << number;
        } else {
            std::cout << number;
        }
    } else { ss.get(); }
}

I tried using ss.tellg() == path.length(), but that doesn't work. Does somebody have an alternative?

我尝试使用 ss.tellg() == path.length()，但这不起作用。有人有替代方案吗？

采纳答案by JNevens

I figured it out..

我想到了..

std::string path(1.2.3);
int number;
std::stringstream ss(path);
while (!ss.eof()) {
    if (ss.peek() != '.') {
        ss >> number;
        if (ss.tellg() == -1) {
            std::cout << "Last one: " << number;
        } else {
            std::cout << number;
        }
    } else { ss.get(); }
}