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more bignum cleanup

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Fabrice Bellard
2025-03-19 11:43:31 +01:00
parent 96e7965cf4
commit 6de88859e7
9 changed files with 14 additions and 890 deletions
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doc/quickjs.texi
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@@ -24,10 +24,6 @@ ES2023 specification
@footnote{@url{https://tc39.es/ecma262/2023 }}
including modules, asynchronous generators, proxies and BigInt.
It supports mathematical extensions such as big decimal float float
numbers (BigDecimal), big binary floating point numbers (BigFloat),
and operator overloading.
@section Main Features
@itemize
@@ -47,8 +43,6 @@ features from the upcoming ES2024 specification
@item Garbage collection using reference counting (to reduce memory usage and have deterministic behavior) with cycle removal.
@item Mathematical extensions: BigDecimal, BigFloat, operator overloading, bigint mode, math mode.
@item Command line interpreter with contextual colorization and completion implemented in Javascript.
@item Small built-in standard library with C library wrappers.
@@ -123,10 +117,6 @@ source is @code{import}.
@item --script
Load as ES6 script (default=autodetect).
@item --bignum
Enable the bignum extensions: BigDecimal object, BigFloat object and
the @code{"use math"} directive.
@item -I file
@item --include file
Include an additional file.
@@ -193,21 +183,8 @@ when the @code{-fno-x} options are used.
@item -fno-[eval|string-normalize|regexp|json|proxy|map|typedarray|promise|bigint]
Disable selected language features to produce a smaller executable file.
@item -fbignum
Enable the bignum extensions: BigDecimal object, BigFloat object and
the @code{"use math"} directive.
@end table
@section @code{qjscalc} application
The @code{qjscalc} application is a superset of the @code{qjs}
command line interpreter implementing a Javascript calculator with
arbitrarily large integer and floating point numbers, fractions,
complex numbers, polynomials and matrices. The source code is in
@file{qjscalc.js}. More documentation and a web version are available at
@url{http://numcalc.com}.
@section Built-in tests
Run @code{make test} to run the few built-in tests included in the
@@ -301,25 +278,6 @@ ECMA402 (Internationalization API) is not supported.
@end itemize
@subsection Mathematical extensions
The mathematical extensions are fully backward compatible with
standard Javascript. See @code{jsbignum.pdf} for more information.
@itemize
@item @code{BigDecimal} support: arbitrary large floating point numbers in base 10.
@item @code{BigFloat} support: arbitrary large floating point numbers in base 2.
@item Operator overloading.
@item The directive @code{"use bigint"} enables the bigint mode where integers are @code{BigInt} by default.
@item The directive @code{"use math"} enables the math mode where the division and power operators on integers produce fractions. Floating point literals are @code{BigFloat} by default and integers are @code{BigInt} by default.
@end itemize
@section Modules
ES6 modules are fully supported. The default name resolution is the
@@ -1105,12 +1063,11 @@ binary properties.
The full Unicode library weights about 45 KiB (x86 code).
@section BigInt, BigFloat, BigDecimal
@section BigInt
BigInt, BigFloat and BigDecimal are implemented with the @code{libbf}
library@footnote{@url{https://bellard.org/libbf}}. It weights about 90
KiB (x86 code) and provides arbitrary precision IEEE 754 floating
point operations and transcendental functions with exact rounding.
BigInts are represented using binary two's complement notation. An
additional short bigint value is used to optimize the performance on
small BigInt values.
@chapter License