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Dark GDK / Adding strings

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Dimension
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Posted: 23rd Aug 2009 02:53
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In darkbasic you can add strings like follows "Countdown "+str$(i) how would you go about doing this in c++.

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Benjamin
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Posted: 23rd Aug 2009 02:58
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You can create a formatted string with sprintf.



Always make sure the output buffer is big enough to store the string.
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heyufool1
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Posted: 23rd Aug 2009 03:01 Edited at: 23rd Aug 2009 03:01
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there are a few ways, but this is the most common I think:

that would display "Countdown: " then the value of i at position 0,0 on the screen.

%d - decimal
%i - integer
%f - float
%s - string

Games are like life, they should never stand still.
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MFC Coder
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Posted: 23rd Aug 2009 16:55
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This is probably WAY overkill for what you need but I thought if you ever find the need for some really complex formatting the stream classes for strings are quite versatile. I started using std::ostrstream with these types of outputs since I can use std::string in my code as well as the other types and format them all quite easily. Here is an example:



MFC Coder
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Dimension
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Posted: 25th Aug 2009 02:24
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also I found
char source[256];
stdcat(source, "added");
does anybody now exactly what this does?

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Mista Wilson
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Posted: 25th Aug 2009 02:31
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strcpy()
strcat()
strcmp()

and a bunch of others are C-String functions. They are designed to work with character array pointers and are basically native C functions. These are the ones I tend to use for debug text as they are quite quick the syntax is simple to write out and change over and over again... a simple usage might be :




If it ain't broke.... DONT FIX IT !!!
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TheGroggyOne
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Posted: 25th Aug 2009 15:12
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Use the string class. The include is sstream. The code is along the lines of...

int i = some integer;
std::stringstream str;
str << i;
std::string s = str.str();
std::string out("Countdown ");
out += s;
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DnB
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Posted: 29th Sep 2009 19:35
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Do something like this, it works.



That is called concatenation.
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DnB
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Posted: 29th Sep 2009 19:38
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Sorry lol, that was my code for DarkGDK

Here is a more C++ Approach..



Of course you could just save yourself a whole step and put the last line as

string FinalResult = buffer + " " + buffer3;
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Benjamin
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Posted: 29th Sep 2009 20:09
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Quote: "std::string buffer2 = dbGetDate ( );"


This is a bad idea, as you'll lose the pointer returned by dbGetDate and thus you'll get a memory leak.
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