src/core/isomorphism/bliss/igraph-changes.md

In igraph: Network Analysis and Visualization

This file lists changes that were made to the original Bliss package (version 0.75) to integrate it into igraph.

Exclude CMakeLists.txt, Doxyfile, Makefile-manual, readme.txt. Make sure not to accidentally overwrite igraph's own bliss/CMakeLists.txt.

Removed bliss.cc, bliss_C.cc, bliss_C.h.

Remove timer.hh. Remove references to timer.hh and Timer class in graph.cc.

Replace #pragma once by traditional header guards in all headers.

In bignum.hh:

Replace #include <gmp.h> by #include "internal/gmp_internal.h".

At the beginning, add #define BLISS_USE_GMP. Verify that this macro is only used in this file.

In defs.cc and defs.hh:

Remove the ... argument from fatal_error for simplicity, and make the function simply invoke IGRAPH_FATAL.

In graph.cc:

Define _INTERNAL_ERROR in terms of IGRAPH_FATAL.

MSVC compatibility

Bliss uses and, or, etc. instead of &&, ||, etc. These are not supported by MSVC by default. Bliss 0.74 uses the /permissive option to enable support in MSVC, but this option is only supported wit VS2019. Instead, in igraph we add the following where relevant:

/* Allow using 'and' instead of '&&' with MSVC */
#if _MSC_VER
#include <ciso646>
#endif

igraph documentation built on Aug. 10, 2023, 9:08 a.m.