Premiere MAJ pour 3.00
git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@3075 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02master
Xavier Leroy
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4143a8675a
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5ed995f789
98
Changes
98
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Objective Caml 3.00:
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--------------------
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Language:
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- OCaml/OLabl merger:
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* Support for labeled and optional arguments for functions and classes.
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* Support for variant types (sum types compared by structure).
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See tutorial (chapter 2 of the OCaml manual) for more infos.
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- Added exception renaming in structures (exception E = F).
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Both compilers:
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- Option -labels to select commuting label mode (labels are mandatory,
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but labeled arguments can be passed in a different order than in
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the definition of the function; in default mode, labels are optional,
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but no argument reordering is possible).
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- Libraries (.cma and .cmxa files) now "remember" C libraries given
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at library construction time, and add them back at link time.
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Allows linking with e.g. just unix.cma instead of
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unix.cma -custom -cclib -lunix
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- Revised printing of error messages, now use Format.fprintf; no visible
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difference for users, but could facilitate internationalization later.
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- Fixed bug in unboxing of records containing only floats.
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- Fixed typing bug involving applicative functors as components of modules.
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- Better error message for inconsistencies between compiled interfaces.
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Bytecode compiler:
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- New "modular" format for bytecode executables; no visible differences
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for users, but will facilitate further extensions later.
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- Revised treatment of signals.
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Native-code compiler:
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- Profiling support on x86 under FreeBSD
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- Open-coding and unboxing optimizations for the new integer types
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int32, int64, nativeint, and for bigarrays.
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- Fixed instruction selection bug with "raise" appearing in arguments
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of strict operators, e.g. "1 + raise E".
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- Better error message when linking incomplete/incorrectly ordered set
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of .cmx files.
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- Optimized scanning of global roots during GC, can reduce total running
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time by up to 5% on GC-intensive programs.
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Interactive toplevel:
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- Better printing of exceptions, including arguments, when possible.
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- Fixed rare GC bug occurring during interpretation of scripts.
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- Added consistency checks between interfaces and implementations
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during #load.
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Run-time system:
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- Added support for "custom" heap blocks (heap blocks carrying
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C functions for finalization, comparison, hashing, serialization
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and deserialization).
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- Support for finalization functions written in Caml.
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Standard library:
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- New modules Int32, Int64, Nativeint for 32-bit, 64-bit and
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platform-native integers
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- Module Gc: added Gc.finalise to attach Caml finalisation functions to
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arbitrary heap-allocated data.
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- Module Hashtbl: do not bomb when resizing very large table.
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- Module Lazy: raise Lazy.Undefined when a lazy evaluation needs itself.
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- Module List: fixed bug in List.rev_map2.
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- Module Map: added mapi (iteration with key and data).
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- Module Set: added iterators for_all, exists, filter, partition.
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- Module Sort: ???
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- Module Stack: added Stack.top
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- Module String: fixed boundary condition on String.rindex_from
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- Added labels on function arguments where appropriate.
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New or updated ports:
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- Alpha/Digital Unix: lifted 256M limitation on total memory space
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induced by -taso
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- Port to AIX 4.3 on PowerPC
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- Port to HPUX 11 on HPPA
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- Deprecated 680x0 / SunOS port
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New libraries and tools:
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- ocamlbrowser: graphical browser for OCaml sources and compiled interfaces,
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supports cross-referencing, editing, running the toplevel.
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- LablTK: GUI toolkit based on TK, using labeled and optional arguments,
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easier to use than CamlTK.
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- Bigarray: large, multi-dimensional numerical arrays, facilitate
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interfacing with C/Fortran numerical code, efficient support for
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advanced array operations such as slicing and memory-mapping of files.
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Other libraries:
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- Bytecode threads: timer-based preemption was broken, works back again;
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fixed bug in Pervasives.input_line; exported Thread.yield.
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- System threads: several GC / reentrancy bugs fixed in buffered I/O
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and Unix I/O; revised Thread.join implementation for strict POSIX
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conformance; exported Thread.yield.
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- Graphics: added support for double buffering; added rmoveto, rlineto.
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- Num: fixed bug in Num.float_of_num.
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- Str: worked around potential symbol conflicts with C standard library.
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Macintosh port:
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- Implemented the Unix and Thread libraries.
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Objective Caml 2.04:
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Objective Caml 2.04:
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--------------------
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--------------------
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