How do I put numbers into a string?
Author
I want to display the FPS in my program and I'm passing a char*
to my text blitter function, but I can't find any help documentation on putting the int values in a string/char.
In C, you can use sprintf or (better) snprintf.
A preferable C++ alternative would be using a stringstream (just like any ostream), obtaining the resulting string, and using the c_str( ) member to get a char* member.
Although in that case, you will need to be passing a const char * to your blitter function (or create a copy from it by hand before passing it).
A preferable C++ alternative would be using a stringstream (just like any ostream), obtaining the resulting string, and using the c_str( ) member to get a char* member.
Although in that case, you will need to be passing a const char * to your blitter function (or create a copy from it by hand before passing it).
Quote:Original post by Jimmy Valavanis
or use the itoa() function.
Unless, of course, you are programming for a platform which doesn't have that non-standard function.
Example of string streams:
The above snippet will display "Some String 8534895"
#include <sstream>#include <iostream>using namespace std;int SomeInt = 8534895;char *Str = "Some String";//join the two togetherstringstream StrStream;StrStream << Str << " " << SomeInt;//output the string as a const char*cout << StrStream.str().c_str();The above snippet will display "Some String 8534895"
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