[diff.cpp14.string]

Affected subclause: [basic.string]

Change: Non-const .data() member added.

Rationale: The lack of a non-const .data() differed from the similar member of std::vector.

This change regularizes behavior.

Effect on original feature: Overloaded functions which have differing code paths for char* and const char* arguments will execute differently when called with a non-const string's .data() member in this revision of C++.

[Example 1: int f(char *) = delete; int f(const char *); string s; int x = f(s.data(); / ill-formed; previously well-formed — end example]