As far as I know,in C++ string is itself an array of char.
So my question is:
Is it possible to have a String array in C++?
If yes please let me know the way to declare/handle it.
4 Answers
Of course it is:
// Requires <string> and <vector> includes
std::vector<std::string> foo = {"this", "is", "a", "string", "array"};
or
// Requires <string> and <array> includes
std::array<std::string, 3> foo = {"if", "you", "must"};
As a rule of thumb, always use std::vector unless you can think of a very good reason not to.
8 Comments
Java Rookie
can this array be handled just like a normal array?
Bathsheba
@JavaRookie: Indeed it can. C++11 is very powerful.
wally
@JavaRookie You can use the subscript operator in the usual way. E.g.
foo[0] to get the first string.Java Rookie
is #include<string.h> required for using this?
Quentin
@JavaRookie Turbo C++ is an ancient compiler which came before C++ had even reached its first official version. Use a compiler from this millenium, such as GCC or Clang.
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In modern C++, we try not to see strings as array of characters anymore. Some high-level tools from the Standard Library provide the level of indirection we need.
Array of five strings:
std::array<std::string, 5> = {"init.", "generously", "provided", "by", "Bathsheba" };
Dynamic array of strings:
std::vector<std::string> = { "as", "much", "strings", "as", "one", "wants" };
Please see their related documentation:
String is a type. As with any other type it is possible to define an array of strings in C++:
std::string myarray[] = {"Hello", "World", "Lorem"};
or:
std::vector<std::string> myarray = {"Hello", "World", "Lorem"};
or:
std::array<std::string, 3> myarray = {"Hello", "World", "Lorem"};
Be sure to include the <string> and other appropriate headers. Here is more info on std::string class template.
Comments
Here is what you want literally:
#include <string>
// ...
std::string str_array[] = {"some", "strings", "in", "the", "array"};
But actually you'd better use std::array or std::vector as it shown in others answers.
std::stringfrom#include <string>is the class type for string in c++std::string.std::stringis mostly preferred.