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Convert number to a string

 
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Slopey



Joined: 31 Jul 2005
Posts: 24
PostPosted: Wed Jul 26, 2006 9:07 am    Post subject: Convert number to a string Reply with quote
Hi All,

What's the easiest way to convert a number to a string (for example an integer?) in C/C++?

In the past Ive used itoa but I believe thats non-standard.

Thanks in advance - it's been a while since I've done any C/C++ and this one has complete escaped me - it's also missing from my books :/

Cheers,
S.
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Raphael



Joined: 17 Jan 2006
Posts: 646
Location: Germany
PostPosted: Wed Jul 26, 2006 9:20 am    Post subject: Reply with quote
Either use itoa as you said, or do the dirty way with sprintf.

Code:

int i = 5023;
char number[32];
snprintf(number,32,"%i",i);
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ADePSP



Joined: 13 Jul 2006
Posts: 58
PostPosted: Wed Jul 26, 2006 9:59 am    Post subject: Reply with quote
Raphael wrote:
Either use itoa as you said, or do the dirty way with sprintf.

Code:

int i = 5023;
char number[32];
snprintf(number,32,"%i",i);

Why is "sprintf" dirty...? Really, i'm new and I use this...?

Code:
  char buffer[200];
  float num = 20.39999999;

  sprintf(buffer,"Why is this wrong...? Does this float look nice %.02...?",num);

If there is something wrong with that please tell us...?

ADe

P.S. Apart from declaring more bytes for the char than were needed... :D
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Raphael



Joined: 17 Jan 2006
Posts: 646
Location: Germany
PostPosted: Wed Jul 26, 2006 11:08 am    Post subject: Reply with quote
ADePSP wrote:

Why is "sprintf" dirty...? Really, i'm new and I use this...?

Well, it's not really dirty, I just called it that in this case, as it needs the extra line to declare your buffer ;)

ADePSP wrote:

Code:
  char buffer[200];
  float num = 20.39999999;

  sprintf(buffer,"Why is this wrong...? Does this float look nice %.02...?",num);

If there is something wrong with that please tell us...?

well, I think it should be %.02f but other than that it's perfectly fine
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