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05.08.2003 at 01:22AM PDT, ID: 20609584
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convert int to char*
Tags: int, char, convert
as a newbee to c/c++ development, i would like to know, how i can convert a INT number to a CHAR string ?

anybody who could help me please ??

thx a lot
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Question Stats
Zone: Programming
Question Asked By: bongomagcian
Solution Provided By: fridom
Participating Experts: 5
Solution Grade: B
Views: 729
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05.08.2003 at 02:00AM PDT, ID: 8486538

Rank: Master

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05.08.2003 at 03:18AM PDT, ID: 8487026

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06.05.2004 at 06:04PM PDT, ID: 11241765

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06.13.2004 at 10:56PM PDT, ID: 11303707

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10.19.2005 at 01:59AM PDT, ID: 15114213

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05.08.2003 at 02:00AM PDT, ID: 8486538

Rank: Master

sprintf

char buf [SOME_SIZE];
int some_int;
sprintf(buf, "%d", some_int);

does the job

Regards
Friedrich

Accepted Solution
 
05.08.2003 at 03:18AM PDT, ID: 8487026
there is a direct function for doing it

char *  itoa ( int value, char * buffer, int radix );

example is as under.


#include <stdlib.h>
int no=200;
char st[20];
itoa ( no, st, 10);

last "10" specifies that no. is in decimal system.

 
06.05.2004 at 06:04PM PDT, ID: 11241765
Keep in mind that itoa() is not ANSI C99 standard... its a no go with gcc.
 
06.13.2004 at 10:56PM PDT, ID: 11303707
you may try this:

simply add 2 macros in your header file.

#define __stringify_1(x)         #x
#define __stringify(x)           __stringify_1(x)


 
10.19.2005 at 01:59AM PDT, ID: 15114213
/* Assume "a" is the input integer with less than 18 digits,
   and "s" is a string pointer for output. */

void int2str(int a, char *s)
{
  int i = 19;
  char str[20], *p_str;

  str[i--] = '\0';
 
  do {
    str[i--] = '0' + a%10;
  } while (a = a/10)

  for ( ; i<19; i++){
    *s++ = str[++i];
  }
}
 
 
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