subs
Reputation: 2249
Check if std::wstring is null or empty
How to check if an std::wstring is null or empty?
Upvotes: 19
Views: 24085
Answers (1)
GManNickG
Reputation: 503765
wstring is not a pointer, it cannot be null. You can check if it's empty (that is, is equivalent to "") either by direct comparison to the previous, or by:
str.empty(); // == (str.size() == 0)
Upvotes: 35
Related Questions
- How do I check if a StringStream variable is empty/null?
- Check if string is "null" in C++
- C++ check if string is space or null
- C++ - Checking if string is empty
- Detect a blank string value
- Check if string is empty
- Is wstring null terminated?
- How to prevent a runtime crash when passing NULL to std::wstring?
- how to check if corba::WString is empty?
- Checking if a string object has only null characters