Initializing strings as null vs. empty string
c++, initialization, string
Solution
There's a function `empty()` ready for you in `std::string:`
std::string a;
if(a.empty())
{
//do stuff. You will enter this block if the string is declared like this
}
or
std::string a;
if(!a.empty())
{
//You will not enter this block now
}
a = "42";
if(!a.empty())
{
//And now you will enter this block.
}
Problem
Would it matter if my C++ code (as shown below) has a string initialized as an empty string: ``` std::string myStr = ""; ....some code to optionally populate 'myStr'... if (myStr != "") { // do something } ``` vs. no/null initialization: ``` std::string myStr; ....some code to optionally populate 'myStr'... if (myStr != NULL) { // do something } ``` Are there any concerns here?