How can I creat a empty string?

Hi,

I need to add string to a string array, but I cannot get the results with length of 3 (like the matrix in the following code), but 4 with a empty string("") for first element. How can I create a empty string? or any alternertive approach for this purpose? Thank you very much

Example:

% for matrix
a = [];
for i = 1:3
    a(end+1) = 1;
end

results: a = 1 1 1

% for string
a = string(); % a = strings; a = ""; works same
for i = 1:3
    a(end+1) = "1";
end

results: a =

1×4 string array

"" "1" "1" "1"

Answer 1

[Alex Sune]

% for string
a = string([]);
for i = 1:3
    a(end+1) = "1";
end

Answer 2

[Shiv Kumar]

std::string a;

if(a.empty())

{
    
}

or

std::string a;

if(!a.empty())

{
    
}
a = "42";

if(!a.empty())

{
    
}

[Walter Roberson]

This is not MATLAB code, it is C++ code. It is not clear what the relevance of it is?