[Commits] [wesnoth/wesnoth] b05773: resolve ambiguities in referring to std::abs, in m...

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/wesnoth/wesnoth
  Commit: b05773c4099e9a2c987adc0c656ec7ed96dec0ff
      https://github.com/wesnoth/wesnoth/commit/b05773c4099e9a2c987adc0c656ec7ed96dec0ff
  Author: Chris Beck <render787 at gmail.com>
  Date:   2014-10-27 (Mon, 27 Oct 2014)

  Changed paths:
    M src/map_location.hpp

  Log Message:
  -----------
  resolve ambiguities in referring to std::abs, in map_location.hpp

Ancestral reported compilation errors with clang on OS X,
basically similar to what is reported here:

https://github.com/Project-OSRM/osrm-backend/issues/1000

I fix it by replacing calls to std::abs, with calls to _abs, a
function pointer I define to be & _abs, so that I can control
exactly which overload is selected and thus resolve the ambiguity.