[ET Trac] [Einstein Toolkit] #1538: Turn CCTK_REAL8 etc. into typedefs

[Einstein Toolkit]

#1538: Turn CCTK_REAL8 etc. into typedefs
-------------------------+--------------------------------------------------
 Reporter:  eschnett     |       Owner:                     
     Type:  enhancement  |      Status:  new                
 Priority:  minor        |   Milestone:                     
Component:  Cactus       |     Version:  development version
 Keywords:               |  
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 Currently, CCTK_REAL8 are #defines. This is inconvenient, since e.g.
 CCTK_REAL16 may be "long double", and the C++ syntax
 {{{
 CCTK_REAL16(x)
 }}}
 is then illegal, since this expands to "long double(x)". Turning
 CCTK_REAL8 and friends into proper typedefs remedies this.

 The attached patch also corrects two small issues in cctk_Types.h: (1) The
 include guard around "cctk_Config.h" should not be there, and (2) some
 #endifs have wrong comments.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1538>
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