Release v0.6

[0.6] - 2022-03-24

Added (major)

• Support for reading and writing Tensors, which are coordinate lists
  where the coordinates are densely packed row by row.

Added (minor)

• Support for symmetrizing from a CSR to a COO
• Support for computing the maximum label values per dimension in Tensors
• Support for compiling into a sequential version without OpenMP

Fixed

• Fixed a bug in determining the order of certain tensors from ASCII files

Release v0.5

[0.5] - 2021-09-13

Added (major)

• Support for signed and unsigned integral and floating point weights
• Add the Matrix class, which is non-symmetric by default, and added
  SymMatrix for the specialized symmetric case (represented only by
  a CSR).
• Added a DiGraph (directed graph) class, similar to a Matrix but with
  graph-specific naming and in-edge and out-edge iterators.
• Added support for writing out COOs to ASCII files
• Added support for upper-triangle handling in COO template parameters
• Added support for removing multiple edges by a CSR generation method,
  new_csr_without_dups

Added (minor)

• Support for easily computing the vertex degree (non-zeros in a row)
• Support for changing label and ordinal types between CSR and COOs
• Automatic detection and appropriate handling of 1-based .graph files
• Test file for removing self loops
• Support for symmetrizing inputs, along with a timer and test
• Support for returning the number of rows and columns for rectangular CSRs
• Support for transposing COOs
• Support for copying COOs
• Support for (weighted) graphs
• Support for changing the number of rows, cols, and labels in COOs
• Support for reading and writing binary directed graphs
• Added a release generation script to create a single header file
• Added support for sorting CSRs
• Support for creating a fixed-sized uninitialized COO
• Added an example for finding an edge in a graph
• Added const to size returning methods in COO and CSR

Breaking changes (minor)

• Removed the Matrix alias due to adding full (non-symmetric) Matrix
  support
• Changed symmetrizing to not introduce multiedge diagonals
• Removed the option for the COO to remove multi edges

Fixed

• Fixed support for converting from shared_ptr COOs to CSRs
• Fixed passing template arguments from CSR to COOs
• Fixed setting n for matrix market files instead of just nrows/ncols
• Fixed symmetrizing with weights
• Fixed a bug where nrows and ncols were not saved in CSR binary files
• Fixed CMake to ensure anything that uses PIGO is linked with OpenMP
• Fixed the detection of Linux-specific file opening options to not detect GCC

Version 0.4

PIGO Version 0.4.

PIGO is released as a single file that can be included in projects. Please see the documentation and README for more information on how to use it.