Re: Re: =?iso-8859-1?Q?Re=3A_Math=2Esign_vs_=B10?=

# Ingvar Stepanyan (12 years ago)

Why can’t we do Uint64 class inside Math namespace to be used for all the 64-bit arithmetic operations?

Like:

var x = Math.Uint64(2);

var y = Math.Uint64.fromString(“0x12345678abcdef01”);

var z = x.mul(y); // or Math.Uint64.mul(x, y)

var z_hi = z.hi; // highest 32-bit part

var z_lo = z.lo; // lowest 32-bit part

var z_val = Number(z); // or z.valueOf(), returns IEEE.754-compatible float64 number when possible (with highest possible precision, so no loss up to +-2^52)

Such syntax looks not so “low-level” for JS devs, should be easily polyfilled by current engines and optimized by new ones.

, Ingvar Stepanyan.

Why can’t we do Uint64 class inside Math namespace to be used for all the 64-bit arithmetic operations?




Like:




var x = Math.Uint64(2);

var y = Math.Uint64.fromString(“0x12345678abcdef01”);

var z = x.mul(y); // or Math.Uint64.mul(x, y)

var z_hi = z.hi; // highest 32-bit part

var z_lo = z.lo; // lowest 32-bit part

var z_val = Number(z); // or z.valueOf(), returns IEEE.754-compatible float64 number when possible (with highest possible precision, so no loss up to +-2^52)




Such syntax looks not so “low-level” for JS devs, should be easily polyfilled by current engines and optimized by new ones.






Regards,
Ingvar Stepanyan.
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