error: use of undeclared identifier 'std' c++
11,154
It is because you have not used the library for it.
use the below at the top of your header file
#include<string>
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Updated on June 04, 2022Comments
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Admin over 1 year
I am new to coding in C++ and I want to make a simple Pokemon game.
I created a class in a header file and I am defining the functions in a separate
.cpp
file.I also have a main file where I will run my actual code.
So I am defining a
std::string
function in my functions file, and it saysstd
is an undeclared identifier.Here are each of my files:
Function Definition:
#include "fns.hpp" int Pokemon::getHP() { return hp; } int Pokemon::getAttack() { return attack; } int Pokemon::getDefense() { return defense; } int Pokemon::getSpecialAttack() { return specialAttack; } int Pokemon::getSpecialDefense() { return specialDefense; } int Pokemon::getSpeed() { return speed; } std::string Pokemon::getAttack1() { return attack1; } std::string Pokemon::getAttack2() { return attack2; } std::string Pokemon::getAttack3() { return attack3; } std::string Pokemon::getAttack4() { return attack4; } Pokemon::Pokemon(int qhp,int qdefense,int qattack,int qspecialAttack,int qspecialDefense,int qspeed,std::string qattack1,std::string qattack2,std::string qattack3,std::string qattack4) : hp(qhp),attack(qattack),defense(qdefense),specialAttack(qspecialAttack),specialDefense(qspecialDefense),speed(qspeed),attack1(qattack),attack2(qattack2),attack3(qattack3),attack4(qattack4) {}
Function Declaration:
class Pokemon { int hp,attack,defense,specialAttack,specialDefense,speed; std::string attack1,attack2,attack3,attack4; public: int getHP(); int getAttack(); int getDefense(); int getSpecialAttack(); int getSpecialDefense(); int getSpeed(); int getAttack1(); int getAttack2(); int getAttack3(); int getAttack4(); Pokemon(int qhp,int qdefense,int qattack,int qspecialAttack,int qspecialDefense,int qspeed,std::string qattack1,std::string qattack2,std::string qattack3,std::string qattack4); };
Whenever I say
std::string
, it says it is an undeclared identifier.Can someone please help me?