floating point - Does Java's BigDecimal leverage the hardware architecture like long double in C++? -

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as understand it, long double in c++ leverages hardware architecture (at least architectures). bigdecimal in java small enough inputs?

does bigdecimal in java small enough inputs?

no, , not. floating-point numbers lossy, while every bigdecimal has associated precision, , can represent number below precision. there no "small enough input" can usefully rendered floating point number, because if happen have bigdecimal value can represented in floating-point notation, you'd hard-pressed sort of operations on value , maintain specified precision.

put way, purpose of bigdecimal offer precision while sacrificing speed. runs contrary floating-point, sacrifices precision in favor of speed.

it sounds you're asking if java offers way work long double sized floating-point numbers, , there not. can conclude fact it's not provided jdk authors have never felt necessary add language.


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