char* p = "abc";
In the given line of code, we defined an array of char* objects. We initialize pointers with string constants. But the compiler shows error and as the error explains itself, converting a string constant not allowed in C++. There is no extra explanation for this error because it is a rule of C++ and as we all know C++ is a very sensitive programming language as both “a” and “A” have different meanings along with memory allocation.
If you have use C instead of C++ a lot, then you may be wondering why is a conversion from string constant to char* is valid in C but invalid in C++?
Till C++03, line of code given above was valid, but used a criticize implicit conversion i.e., a string constant should be treated as of type char const *, because you can't modify its contents. And if you modify its contents, there will be undefined behaviour.
When C++11 comes to the real world of programming, the implicit conversion, which used to be criticized, was officially removed, so code that depends on it should no longer compile.
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As we discuss why converting a string literal to const char* is not allowed, so instead of doing this, we can declare an array of const char*. If we don’t modify the strings pointed by the array, this should not be a problem.