Manipulate String

[chessc4c6]

As part of a programming assignment, I am supposed to create a my own
toUpper and toLower class functions, This is my piece of code:

void Mystring::toUpper(char *s1){
char *cpy = theString = new char[strlen(s1)+1];
char lower = 'a';
char higher = 'A';
while(!s1++){
if(s1==lower)
s1=higher;
lower++
higher++;
}
}

and this is my returnString function:

char* Mystring::returnString(){
return theString ;
}

But when I return the string, I just get gibberish on the screen...can
someone please help me out and just guide me in the right direction

 

[Marc Aguilera]

As part of a programming assignment, I am supposed to create a my own
toUpper and toLower class functions, This is my piece of code:

void Mystring::toUpper(char *s1){
char *cpy = theString = new char[strlen(s1)+1];
char lower = 'a';
char higher = 'A';
while(!s1++){
if(s1==lower)
s1=higher;
lower++
higher++;
}
}

and this is my returnString function:

char* Mystring::returnString(){
return theString ;
}

But when I return the string, I just get gibberish on the screen...can
someone please help me out and just guide me in the right direction

the answer's in the book you took this code snip from.
Just that!