[GRASS-git] [OSGeo/grass] b06c46: fix integer overflows in r.cost and r.walk (#2842)

[Markus Metz]

  Branch: refs/heads/main
  Home:   https://github.com/OSGeo/grass
  Commit: b06c460733829cac9a79265b0760441be130edd8
      https://github.com/OSGeo/grass/commit/b06c460733829cac9a79265b0760441be130edd8
  Author: Markus Metz <33666869+metzm at users.noreply.github.com>
  Date:   2023-02-20 (Mon, 20 Feb 2023)

  Changed paths:
    M raster/r.cost/flag.c
    M raster/r.cost/main.c
    M raster/r.walk/flag.c
    M raster/r.walk/main.c

  Log Message:
  -----------
  fix integer overflows in r.cost and r.walk (#2842)