- use the generic abstract tag like weak pointers
- a weak pointer is implemented using an ephemeron (one additionnal word)
- add for every full GC a complexity of O((n+m)*(m+1))
with m the number of pure ephemerons,
n the number of ephemerons used as weak pointers
- multiple keys, modifiable keys
The stripping is done during bootstrap, when copying the new ocamlc, ocamllex and ocamldep to boot/. The new "stripdebug" tool performs this task.
As a consequence, comparing the new compilers with the boot/ compilers at the end of bootstrap is more complicated, since the debug section must be ignored. A new tool, "cmpbyt" in tools/, performs this comparison.
Because debug-information has been enabled for compiler build
(GPR#300, e69ccdb), boot/ocamlc suffers a very large increase in size:
it goes from 1838126 bytes (around 1.75 MiB) to 9749343 bytes
(9.30 MiB), a 5.3x increase.
Merge of branch 'hex-float'.
- Add support in byterun/floats.c for conversions between floats and strings in hex notation. We cannot rely on the C standard library here because Microsoft consistently fails at supporting hex notation as standardized in C99. Instead, the conversions are implemented from scratch.
- Add support in the lexer so that hex float literals are recognized in OCaml sources.
- Add support in formats. The ISO C99 format letters for hex floats are %a and %A, but %a is already taken. I chose %h and %H, which are rejected today as bad formats (hence no backward incompatibility) and don't mean anything in C either (h is a modifier, not a format letter).
- Add support in printf. All the trimmings are there in the implementation of %h and %H, including sign modifier and fixed precision.
- Benoit Vaugon contributed support in scanf.
Resolved conflicts:
boot/ocamlc
boot/ocamldep
boot/ocamllex
parsing/lexer.mll
Adding [@unboxed] (resp [@untagged]) on a primitive argument means
that the argument must passed unboxed (resp untagged) to the external
function. Adding [@unboxed] (resp [@untagged]) on the result means
that the external function returns its result unboxed (resp untagged).
The unboxing (resp untagging) method is derived from the type.
Currently unboxing is suported for: float, int32, int64 and nativeint.
Untagging is supported for int.
This patch also increases the cm{i,o,a,x,xa} magic numbers as the type
Primitive.description is changed.
git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@16382 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
- Primitives:
caml_float_of_string extended to recognize "0x" hexa notation
caml_hexstring_of_float new primitive
We do not assume hex floats are supported by the C standard library.
Instead, conversions hex string <-> float are implemented manually.
- Printf: hex FP output supported with formats %h / %H
- Scanf: remains to be updated (see TODO in stdlib/scanf.ml)
git-svn-id: http://caml.inria.fr/svn/ocaml/branches/hex-float@16257 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
(Peter Zotov and Jake Donham,
review by Gabriel Scherer and Jacques-Henri Jourdan)
git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@15830 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
This commits modify the Bigarray syntax extension in order to facilitate the use of custom .{} operators. The compatibility with the existing Bigarray syntax has been preserved as much as possible. However, this commit will break code which use the Bigarray .{}
syntax without opening the Bigarray module first!
Like the previous commit, this commit modifies the parser to desugar bigarray1.{index} to ( .{} ) bigarray1 index. Following the bigarray syntax, the index operator used
in the desugaring changes if the index is a n-tuple:
1-tuple => .{}
2-tuple => .{,}
3-tuple => .{,,}
4 and more tuples => .{,..,}
The bigarray modules has been modified to use this new index operators. Note that this means that these index operators are not anymore accessible without opening the bigarray module.
From: octachron <octa@polychoron.fr>
git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@15662 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
This commit modifies the parser to use the newly defined .() and .[] operators. It also moves the definition of the standard .() and .[] operator for String/Bytes and Array to the pervasives module.
Before this commit, expressions of the form array.(index) and string.(index) where desugared to Array.get[_unsafe] array index and Strinf.get[_unsafe] string index. The unsafe or unsafe version were chosen depending on the presence of the "-unsafe" compiler option. Such expression are now desugared to ( .() ) array index and ( .[] ) string index respectively. The same desugar operation is applied to array.(index) <- value which becomes ( .()<- ) array index value.
In order to keep the standard semantic for the string and array index operations, these new index operators are defined in the pervasives module using new compiler primitives, e.g.
let .() = "%array_opt_get".
These new primitives are then mapped to safe or unsafe version depending on the
the "-unsafe" compiler option. Consequently, these modifications should have no impact on existing code.
With these modifications, defining custom .() and .[] operators should be easier, at the cost of losing access to the standard index operator for either array or string.
From: octachron <octa@polychoron.fr>
git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@15661 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
This commit introduces a new syntax for index operators.
Six core parenthesis operator are added:
.(), .[], .{}, .{,}, .{,,}, .{,..,}.
The .{,}/.{,,}/.{,,,} operators are defined for compatibility with the Bigarray syntax extension.
Each core index operator is available in a access/assignement versions. For instance, .() is declined in
* .() : index operator
* .()<- : indexed assignment operator
The general syntax for these index operators as implemented in the parser is index_operator::= index_operator_core [<-]
From: octachron <octa@polychoron.fr>
git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@15660 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Hongbo Zhang
Mark Shinwell
Will Crichton
François Bobot
Mark Shinwell
Damien Doligez
Xavier Leroy
Gabriel Scherer
Jeremie Dimino
Jérémie Dimino
Pierre Weis
Alain Frisch
Damien Doligez
Jacques Garrigue