Reading floats from string as 2 integers

Question

I'm trying to read floats from string splitting them up to 2 integers.

sscanf(line, "%d.%d", &dec, &frac));

This works with strings like this:

"0.25"

But if theres an optional sign before the number, it doesn't work anymore.

"-0.25"

How can i 'tell' sscanf, that there might be an optional sign before the number?

Answer 1

据我所知%d很好，因为它用于有符号整数，但是这里的问题来自-0为0的事实……您将不得不找到一种解决方法，因为我认为您找不到一个特定情况下的简单明了方法。