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char *itoa(int value)

{

int count, /* number of characters in string */

i, /* loop control variable */

sign; /* determine if the value is negative */

char *ptr, /* temporary pointer, index into string */

*string, /* return value */

*temp; /* temporary string array */

count = 0;

if ((sign = value) < 0) /* assign value to sign, if negative */{ /* keep track and invert value */value = -value;count++; /* increment count */}

/* allocate INTSIZE plus 2 bytes (sign and NULL) */

temp = (char *) malloc(INTSIZE + 2);if (temp == NULL){ return(NULL);}memset(temp,'/0', INTSIZE + 2);

string = (char *) malloc(INTSIZE + 2);

if (string == NULL){ return(NULL);}memset(string,'/0', INTSIZE + 2);ptr = string; /* set temporary ptr to string */

/*--------------------------------------------------------------------+

| NOTE: This process reverses the order of an integer, ie: || value = -1234 equates to: char [4321-] || Reorder the values using for {} loop below |+--------------------------------------------------------------------*/do { *temp++ = value % 10 + '0'; /* obtain modulus and or with '0' */count++; /* increment count, track iterations*/} while (( value /= 10) >0);

if (sign < 0) /* add '-' when sign is negative */

*temp++ = '-';

*temp-- = '/0'; /* ensure null terminated and point */

/* to last char in array */

/*--------------------------------------------------------------------+

| reorder the resulting char *string: || temp - points to the last char in the temporary array || ptr - points to the first element in the string array |+--------------------------------------------------------------------*/for (i = 0; i < count; i++, temp--, ptr++){ memcpy(ptr,temp,sizeof(char));}

return(string);

}

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