JDK-8303798 : REDO - Remove fdlibm C sources
  • Type: Sub-task
  • Component: core-libs
  • Sub-Component: java.lang
  • Affected Version: 21
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2023-03-08
  • Updated: 2023-04-10
  • Resolved: 2023-04-03
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JDK 21
21 b17Fixed
Related Reports
Cloners :  
JDK-8302801 - Remove fdlibm C sources
Relates :  
JDK-8074816 - Resolve disabled warnings for libfdlibm
Relates :  
JDK-8303794 - IEEEremainder problems are causing test failures after JDK-8302801
Relates :  
JDK-4294714 - fdlibm uses HI/LO macros which depend on pointer aliasing - portability issue
Relates :  
JDK-6989117 - fdlibm compiler warning messages
Description
REDO of JDK-8302801 after the IEEEremainder omission is fixed.

This change can include update the description in StrictMath:

"These algorithms, which are written in the C programming language, are then to be understood as executed with all floating-point operations following the rules of Java floating-point arithmetic. "

to include the mappings used during the transliteration:

* C unsigned int => Java int, >> on unsigned C values replaced with >>>, comparison of unsigned values replaced with Integer.compareUnsigned.
* Pointer aliasing or unions replaced with Double.doubleToRawLongBits and Double.longBitsToDouble.
Comments
Changeset: ccbb0e8d Author: Joe Darcy <darcy@openjdk.org> Date: 2023-04-03 23:57:01 +0000 URL: https://git.openjdk.org/jdk/commit/ccbb0e8d8927dff5a424717616468d05015cd002
03-04-2023
A pull request was submitted for review. URL: https://git.openjdk.org/jdk/pull/13279 Date: 2023-04-01 18:08:44 +0000
01-04-2023