NEWS

---

insitu 0.1.3.9023

• [9023] Add br_replace() 2025-06-29
• [9022] fix some build errors
• [9021] Add br_round_fast() which is 10x faster than br_round()
• [9020] Expose is_altrep(), is_mutable() and get_refcnt()
• [9019] tf2_apply() and tf3_apply() now work on data.frames.
• [9018] get/set rows/cols from matrices
• [9017] add br_roll() and br_mat_roll(). Game-of-life example.
• [9017] Added 2D transforms
• [9016] br_copy_if() replaced with binaryop br_assign()
• [9016] br_zero() refactored to become a standard unaryop
• [9015] Global dispatch for unary/binary ops using array of func pointers
• [9014] Support for matrix arg to unary ops
• [9013] where and idx for conditional unary ops. Initial attempt at conditional binary ops
• [9012] 'where' conditional for unary ops
• [9011]3D transformation matrices
• [9010] Reintroduce specialised methods for asq and bsq in matrix multiplication
• [9009] Add br_mat_transpose()
• [9009] Add R_NO_REMAP
• [9009] Refactor & add tests for matrix operations.
• [9008] Add mat-mat and mat-vec multiplication.
• [9007] changed function prefix from ins_ to br_
• [9007] changed helper from insitu to by_reference
• [9007] br_mat_dist2(), br_mat_dist3(), br_mat_hypot2(), br_mat_hypot3()
• [9006] br_copy_if()
• [9006] br_is_na()
• [9006] br_copy() replaces old br_copy(), br_copy_from(), br_replace() and br_fill()
• [9005] Including insitu helper for use with with()
• [9004] Use math.h fma() instead of rolling my own
• [9004] nearly full complement of unary and binary math ops
• [9003] add br_copy()
• [9002] Use prefix br_
• [9002] Remove benchmarks from readme
• [9002] Remove xoshiro. Use lehmer64 on all platforms. Needs testing on windows.
• [9001] Add fused multiply add (and variants)
• [9001] Add in-place addition, subtration, division and multiplication
• [9001] Remove use of R's runif()
• [9001] Remove support for integer vectors and character vectors
• [9001] switch from pryr::address() to rlang::obj_address()
• [9000] Update package infrastructure

insitu 0.1.3

• Feature: Using xoshirto256++ on windows, and the faster lehmer64() elsewhere.
  • the actual RNGs are about the same speed, but uint128_t support means we can use the much faster method for random integers on an interval https://lemire.me/blog/2019/06/06/nearly-divisionless-random-integer-generation-on-various-systems/
• re-introduces br_shuffle()

insitu 0.1.2

• Bug fix: using xoshiro256++ as the RNG as it does not rely on uint128_t and pakcage now builds on windows.
• Vignette: References vignette to illustrate behaviour difference between copy-on-modify and modification by-reference

insitu 0.1.0

• Initial release