#include "print.h"

#include <assert.h>

size_t print(am_t *am, char *buffer, size_t buffer_size)
{
	assert(AM_VAL(am)->is_atom);
	assert(AM_VAL(am)->atom.type == ATOM_TYPE_INTEGER);

	size_t i = 0;

	int64_t value = AM_VAL(am)->atom.integer;
	if (value < 0) {
		buffer[i++] = '-';
		value *= -1;
	}

	int divisor = 10;
	while (divisor <= value)
		divisor *= 10;

	do {
		divisor /= 10;
		const int digit = value / divisor;
		value = value % divisor;

		assert(i < buffer_size);
		buffer[i++] = '0' + (char)digit;
	} while (divisor > 1);

	return i;
}