[phobos] [D-Programming-Language/phobos] c7e99d: Make std.range.recurrence safe if possible

[GitHub via phobos]

  Branch: refs/heads/master
  Home:   https://github.com/D-Programming-Language/phobos
  Commit: c7e99d9baff0749dfb334db322c5471b21a2539d
      https://github.com/D-Programming-Language/phobos/commit/c7e99d9baff0749dfb334db322c5471b21a2539d
  Author: Tomoya Tanjo <ttanjo at gmail.com>
  Date:   2014-12-01 (Mon, 01 Dec 2014)

  Changed paths:
    M std/range/package.d

  Log Message:
  -----------
  Make std.range.recurrence safe if possible


  Commit: 30de4c1792eeb464f44920cbecea9d10cde47600
      https://github.com/D-Programming-Language/phobos/commit/30de4c1792eeb464f44920cbecea9d10cde47600
  Author: H. S. Teoh <hsteoh at quickfur.ath.cx>
  Date:   2014-12-01 (Mon, 01 Dec 2014)

  Changed paths:
    M std/range/package.d

  Log Message:
  -----------
  Merge pull request #2778 from tom-tan/safe-range-recurrence

Make std.range.Recurrence safe


Compare: https://github.com/D-Programming-Language/phobos/compare/c1c923e8ed32...30de4c1792ee