ITOA code from the CRT:
PHP Code:
static void __cdecl xtoa (
unsigned long val,
char *buf,
unsigned radix,
int is_neg
)
{
char *p; /* pointer to traverse string */
char *firstdig; /* pointer to first digit */
char temp; /* temp char */
unsigned digval; /* value of digit */
p = buf;
if (is_neg) {
/* negative, so output '-' and negate */
*p++ = '-';
val = (unsigned long)(-(long)val);
}
firstdig = p; /* save pointer to first digit */
do {
digval = (unsigned) (val % radix);
val /= radix; /* get next digit */
/* convert to ascii and store */
if (digval > 9)
*p++ = (char) (digval - 10 + 'a'); /* a letter */
else
*p++ = (char) (digval + '0'); /* a digit */
} while (val > 0);
/* We now have the digit of the number in the buffer, but in reverse
order. Thus we reverse them now. */
*p-- = '\0'; /* terminate string; p points to last digit */
do {
temp = *p;
*p = *firstdig;
*firstdig = temp; /* swap *p and *firstdig */
--p;
++firstdig; /* advance to next two digits */
} while (firstdig < p); /* repeat until halfway */
}
http://www.cplusplus.com/ref/cstdlib/fcvt.html
Quote:
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Kind of annoying that two very similar functions have such a different syntax
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itoa cant convert a double to a string, fcvt can.
Anyways, Adam Shapiro, visit
http://www.cplusplus.com/ref/. it contains information about functions in the standard c library and iostream.
i think in the future they might cover STL but you can always visit the STL docs for information:
http://www.sgi.com/tech/stl/stl_index.html