Since string literals are constant, they should only be assigned to constant pointers as indicated below:
char\* c1 = "Hello"; // Bad: assigned to non-const
char c2\[\] = "Hello"; // Bad: assigned to non-const
char c3\[6\] = "Hello"; // Bad: assigned to non-const
c1\[3\] = 'a'; // Undefined (but compiles)
const char\* c1 = "Hello"; // Good
const char c2\[\] = "Hello"; // Good
const char c3\[6\] = "Hello"; // Good
c1\[3\] = 'a'; // Compile error

\[Lockheed Martin 2005\] Lockheed Martin. Joint Strike Fighter Air Vehicle C+\+ Coding Standards for the System Development and Demonstration Program. Document Number 2RDU00001, Rev C. December 2005.     AV Rule 151.1