Hi,
I am facing a problem in assigning a '0' value to string in header file declaration.
I have a header file A.h
but here compiler is giving error as :Code://A.h void show(const string s& = 0,int = 0 );
I am using gcc version 4.2.1 . I have also used NULL but the result were same.error: default argument for parameter of type 'const string&' has type 'int'
Where is the problem ??
Can any body help ??
I think you want to write:
Code:void show(const string s& = "", int x = 0);
Look up a C++ Reference and learn How To Ask Questions The Smart WayOriginally Posted by Bjarne Stroustrup (2000-10-14)
A good default value for an empty string is "" or std::string(). The second is better: it is the string's default constructor that creates an empty string.
As a side note, you can technically pass 0 (NULL) to string(const char*) constructor, but it will not work as string expects the pointer to be valid and pointing to a null-terminated char array.
I might be wrong.
Quoted more than 1000 times (I hope).Thank you, anon. You sure know how to recognize different types of trees from quite a long way away.
Thanks for help......
