#include "decimal.h"

using namespace dec;
using namespace std;

// the following declares currency variable with 2 decimal points
// initialized with integer value (can be also floating-point)
decimal<2> value(143125);

// displays: Value #1 is: 143125.00
cout << "Value #1 is: " << value << endl;

// declare precise value with digits after decimal point
decimal<2> b("0.11");

// perform calculations as with any other numeric type
value  = b;

// displays: Value #2 is: 143125.11
cout << "Value #2 is: " << value << endl;

// automatic rounding performed here
value /= 1000;

// displays: Value #3 is: 143.13
cout << "Value #3 is: " << value << endl;

// integer multiplication and division can be used directly in expression
// when integer is on right side
// displays: Value: 143.13 * 2 is: 286.26
cout << "Value: " << value << " * 2 is: " << (value * 2) << endl;

// to use integer on left side you need to cast it
// displays: Value: 2 * 143.13 is: 286.26
cout << "Value: 2 * " << value << " is: " << (decimal_cast<2>(2) * value) << endl;

// to use non-integer constants in expressions you need to use decimal_cast
value = value * decimal_cast<2>("3.33") / decimal_cast<2>(333.0);

// displays: Value #4 is: 1.43
cout << "Value #4 is: " << value << endl;

// to mix decimals with different precision use decimal_cast
// it will round result automatically
decimal<6> exchangeRate(12.1234);
value = decimal_cast<2>(decimal_cast<6>(value) * exchangeRate);

// displays: Value #5 is: 17.34
cout << "Value #5 is: " << value << endl;

// supports optional strong typing, e.g.
// depending on configuration mixing precision can be forbidden
// or handled automatically
decimal<2> d2("12.03");
decimal<4> d4("123.0103");

// compiles always
d2  = d2;
d2  = decimal_cast<2>(d4);
d4  = decimal_cast<4>(d2);

#if DEC_TYPE_LEVEL >= 2
// potential precision loss
// this will fail to compile if you define DEC_TYPE_LEVEL = 0 or 1
d2  = d4;
#endif

#if DEC_TYPE_LEVEL >= 1
// (possibly unintentional) mixed precision without type casting
// this will fail to compile if you define DEC_TYPE_LEVEL = 0
d4  = d2;
#endif

// for default setup displays: mixed d2 = 417.15
cout << "mixed d2 = " << d2 << endl;
// for default setup displays: mixed d4 = 687.2303
cout << "mixed d4 = " << d4 << endl;

// supports decimal and thousand separator localization
dec::decimal_format format(',', '.');

std::string srcText   = "315499999999999.98";
std::string formatted = "315.499.999.999.999,98";
dec::decimal<2> srcDecimal(srcText);

BOOST_CHECK_EQUAL(dec::toString(srcDecimal, format), formatted);