LinuxQuestions.org - [SOLVED] What is the existing period of character string in c++/c

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What is the existing period of character string in c++/c

Like the following c++ program, I define a pointer of char type in the class named "test". In the function init1(), str="hello1" , what is the existing period of "hello1". Whether the string "hello1" will be invalid if the function init1() exits ? then "str" point to the invalid field in memory. When will "hello1" and "hello2" be released by OS ?

Where is "hello1" stored in memory?

Code:

#include <iostream>

using namespace std;



class test{

    char *str;



public:

    void init1(){

        str = "hello1";              //Is "hello1" stored in stack?

    }

    void init2(){

        str = "hello2";

    }

    void display(){

        cout<< str << endl;

    }

};



int main(){

    test t1;

    t1.init1();

    t1.display();

    t1.init2();

    t1.display();

    return 0;

}

Code:

cout<< "hello everyone"

When will "hello everyone" be released?

Thanks !!

According to the ISO/IEC 9899:1999 C standard, second edition, section 6.4.5 "String literals", subsection "Semantics", second paragraph:

Quote:

In translation phase 7, a byte or code of value zero is appended to each multibyte character sequence that results from a string literal or literals. The multibyte character sequence is then used to initialize an array of static storage duration and length just sufficient to contain the sequence. <...>