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LDC Runtime Interface

Any D implementation has a rather large runtime implementation, the one in LDC is mostly based on DMD, but with some portability changes.

Functions for arrays

Of particular interest is some of the functions handling arrays. They take and return void[] types, but the length on the array is not in bytes, but number of elements.

These functions are:

  • _aaValues
  • _aaKeys
  • _adReverse
  • _adEq
  • _adCmp
  • _adDupT
  • _adSort

_d_newclass

Use _d_allocclass instead. It does not initialize the memory to ClassInfo?.init. LDC tries to put initializations inline whereever possible to give LLVM better optimization opportunities.

Copyright © 2008, LDC Development Team.