I'm trying to build some 3rd party code and I'm getting an error:
ValueToString.cpp:70: error: ‘std::basic_string::size_type’ is not a type
The offending code:
I don't see what the error is!Code:template <class T> static void ensureCapacity(std::basic_string<T>& buffer, std::basic_string<T>::size_type extraChars) { std::basic_string<T>::size_type requiredCapacity = buffer.length() + extraChars; if (requiredCapacity > buffer.capacity()) { buffer.reserve(2 * requiredCapacity); } }
Last edited by 6tr6tr; 10-22-2008 at 05:46 PM.
It means you need to add typename at the front of that phrase to indicate that std::basic_string<T>::size_type is referring to a type. Because it is based on T which could be anything, the compiler doesn't know whether size_type is a type or something else there. Adding typename resolves the ambiguity.
So is this the correct code? I added typename in two places:
Code:template <class T> static void ensureCapacity(std::basic_string<T>& buffer, typename std::basic_string<T>::size_type extraChars) { typename std::basic_string<T>::size_type requiredCapacity = buffer.length() + extraChars; if (requiredCapacity > buffer.capacity()) { buffer.reserve(2 * requiredCapacity); } }
I think so. Those are the only two places I notice.
Does it fix the error?
