C language interview questions for gaming companies

 

 

 

 

# Include <iostream>

Using namespace STD;

 

// Apply memories in a function.

Void getmemory (char ** P)

{

* P = (char *) malloc (10 );

}

 

/**

* P will be free after getmemory2 invoked.

*/

Char * getmemory2 (void)

{

Char P [] = "Hello World ";

Return P;

}

/**

* Write a function which Concat a string to another string without using system library

*/

Char * strconcat (char * deststr, const char * srcstr)

{

Char * Header = deststr;

While (* deststr! = '/0 ')

{

Deststr ++;

}

While (* srcstr! = '/0 ')

{

* Deststr ++ = * srcstr ++;

}

* Deststr = '/0 ';

Return header;

}

 

Int main ()

{

// 1 ./*

Char * P = NULL;

Getmemory (& P );

Strcpy (P, "hello ");

Cout <p <Endl;

Free (P );

// 2.

Char * P2 = NULL;

P2 = getmemory2 ();

Strcpy (P2, "hello ");

Cout <P2 <Endl;

 

// 3.

Char * STR = (char *) malloc (sizeof (100 ));

Free (STR );

If (STR! = NULL)

{

Strcpy (STR, "world ");

Cout <STR <Endl;

}

 

// 4.

Char str1 [15] = "hello ";

Char * str2 = "world ";

Strconcat (str1, str2 );

Cout <str1 <Endl;

Return 0;

}