A question about strings... (Beginner) 1

[Skywise]

My question about strings is this:
How the heck do you make them?

I have tried everything I can think of... I am using Borland's 5.02 c++ complier.
Everything I try doesn't seem to work. Can someone show me a way to make a
simple string without getting errors galore? Thanks.

 

[zBuilder]

#include <stdio.h>

char YourString[] = &quot;Hello there, and how are you today?&quot;;
printf( &quot;%s&quot;, YourString );



Kim_Christensen@telus.net

http://www3.bc.sympatico.ca/Kim_Christensen/index.html

 

[Denster]

Or if you enter from the keyboard...

#include<stdio.h>

void main()
{
char str[50];
gets(str);
printf(&quot;%s&quot;,str);
}

 

[Skywise]

How can I reassign a string? Everytime I try to, I get a &quot;char to *char&quot; error (or something like that). I think its trying to tell me something about pointers, but all I want to do is to change the string's content all at once (for example, change it from &quot;Hello World&quot; to something else like &quot;Wacky&quot; or something). Surely thats possible, right? (I know it is, I just dont know how to do it yet). Thanks again for all your help, Skywise.

 

[2ffat]

If you are using character strings (arrays), you will need to use their functions, e.g. strcpy, strcat. You cannot assign a character string like this:

char str1[10], str2[10];
str1 = "Hi there";
str2 = str1;
[code]


If you want to use C++ string you will have to use string class. In Borland 5.02 I [u]think[/u] they are in the CString header. I don't have that version installed any more so I can't check it. Once this has been included you can do this:
[code]
string str1[10], str2[10];
str1 = "Hi there";
str2 = str1;
[code]

You best bet is to get a copy of the standard library that will work with 5.02. They used to have one at SGI's site. They you can use the standard string library.

 James P. Cottingham
[URL unfurl="true"]www.ivcusa.com[/URL]

 

[Pappy1942]

Hi,

Below is a small sample of string manipulation.

#include <stdio.h>
#include <conio.h>
#include <string.h>
main()
{
char mystr[20]= &quot;start program&quot;; // init the string
printf(&quot;\n%s&quot;,mystr); // print the string
strcpy(mystr,&quot;Hello world&quot; // change th string
printf(&quot;\n%s&quot;,mystr);
strcpy(mystr,&quot;Bye world&quot; // change it again
printf(&quot;\n%s&quot;,mystr);
strcat(mystr,&quot;, BYE&quot; // add to the string
printf(&quot;\n%s&quot;,mystr);

getch();

}

This is only a start. Take the time to look up the string functions. Most begin with
'str'. Don't forget to #include <string.h>.
Pappy
You learn something everyday.

 

[dextersmonkey]

In C++ there is no such thing as agregate string operations meaning you can't assign one string to another, you can't assign a string a value unless it is during declaration. You can read a string during input and you can output a string. the following example shows how to get a string at run time, how to copy one string to another, how to concatenate values to a string, and how to output a string:

#include <iostream.h> //for console i/o
#include <conio.h> //for getch()
#include <string.h> //for string manipulation

int const SIZE = 40;

int main(){
char string1[SIZE] = &quot;Hello world!&quot;; //string initialization only possible at declaration
char string2[SIZE];
char string3[SIZE];
char string4[SIZE];
int index;

cout<<&quot;Value of string1 = &quot;<<string1<<endl; //display initialized string
cout<<&quot;Please enter your first name : &quot;<<endl;
cin>>string2; //run time input of string
cout<<&quot;Value of string2 = &quot;<<string2<<endl;

//copy one string to another like strcat() the 2nd param to strcpy() can be a literal value
strcpy(string3, string1);
cout<<&quot;Value of string3 = &quot;<<string3<<endl;

//append the word including and name in string2 to the end of string3
strcat(string3, &quot; including &quot;
strcat(string3, string2);
cout<<&quot;Value of string3 = &quot;<<string3<<endl;

//copy hello from string3 to string4
index = 0;
while(string3[index] != ' '){
string4[index] = string3[index];
index++;
}
cout<<&quot;Value of string4 = &quot;<<string4<<endl;

//pause program to view output
cout<<&quot;Press any key to exit...&quot;<<endl;
getch();

return 0;
}

Hope this helps.

Happy programming!