| # Gaudi Framework, version v21r7p1 |

Home |  | Generated: 15 Feb 2010

# xtoa.cpp File Reference

`#include <stdlib.h>`
`#include <limits.h>`
`#include "GaudiKernel/xtoa.h"`

Include dependency graph for xtoa.cpp:

Go to the source code of this file.

## Functions
static void __cdecl | xtoa (unsigned long val, char *buf, unsigned radix, int is_neg)
char *__cdecl | _itoa (int val, char *buf, int radix)
char *__cdecl | _ltoa (long val, char *buf, int radix)
char *__cdecl | _ultoa (unsigned long val, char *buf, int radix)

## Function Documentation

char* __cdecl _itoa | ( | int | val,
|  | char * | buf,
|  | int | radix |
| ) |  |  |

Definition at line 83 of file xtoa.cpp.

    00083                                                                  {
    00084   if (radix == 10 && val < 0)
    00085     xtoa((unsigned long)val, buf, radix, 1);
    00086   else
    00087     xtoa((unsigned long)(unsigned int)val, buf, radix, 0);
    00088   return buf;
    00089 }

char* __cdecl _ltoa | ( | long | val,
|  | char * | buf,
|  | int | radix |
| ) |  |  |

Definition at line 91 of file xtoa.cpp.

    00091                                                                  {
    00092   xtoa((unsigned long)val, buf, radix, (radix == 10 && val < 0));
    00093   return buf;
    00094 }

char* __cdecl _ultoa | ( | unsigned long | val,
|  | char * | buf,
|  | int | radix |
| ) |  |  |

Definition at line 96 of file xtoa.cpp.

    00096                                                                                 {
    00097   xtoa(val, buf, radix, 0);
    00098   return buf;
    00099 }

static void __cdecl xtoa | ( | unsigned long | val,
|  | char * | buf,
|  | unsigned | radix,
|  | int | is_neg |
| ) |  |  | `[static]`

Definition at line 39 of file xtoa.cpp.

    00039                                                                                   {
    00040   char *p;    /* pointer to traverse string */
    00041   char *firstdig;   /* pointer to first digit */
    00042   char temp;    /* temp char */
    00043   unsigned digval;  /* value of digit */
    00044
    00045   p = buf;
    00046
    00047   if (is_neg) {
    00048     /* negative, so output '-' and negate */
    00049     *p++ = '-';
    00050     val = (unsigned long)(-(long)val);
    00051   }
    00052
    00053   firstdig = p;     /* save pointer to first digit */
    00054
    00055   do {
    00056     digval = (unsigned) (val % radix);
    00057     val /= radix;   /* get next digit */
    00058
    00059     /* convert to ascii and store */
    00060     if (digval > 9)
    00061       *p++ = (char) (digval - 10 + 'a');  /* a letter */
    00062     else
    00063       *p++ = (char) (digval + '0');       /* a digit */
    00064   } while (val > 0);
    00065
    00066   /* We now have the digit of the number in the buffer, but in reverse
    00067      order.  Thus we reverse them now. */
    00068
    00069   *p-- = '\0';    /* terminate string; p points to last digit */
    00070
    00071   do {
    00072     temp = *p;
    00073     *p = *firstdig;
    00074     *firstdig = temp;   /* swap *p and *firstdig */
    00075     --p;
    00076     ++firstdig;   /* advance to next two digits */
    00077   } while (firstdig < p); /* repeat until halfway */
    00078 }