[flang] Changed *.cc file extension to *.cpp (updated scripts) (flang-compiler/f18#958)

Updated CMake files accordingly, using better regex
Updated license headers to match new extension and fit within 80 columns
Updated other comments within files that referred to the old extension

Original-commit: flang-compiler/f18@ae7721e
Reviewed-on: flang-compiler/f18#958

Author: AlexisPerry

flang/documentation/C++style.md

@@ -36,7 +36,7 @@ unless they introduce ambiguity.
 
 ### Files
 1. File names should use dashes, not underscores.  C++ sources have the
-extension ".cc", not ".C" or ".cpp" or ".cxx".  Don't create needless
+extension ".cpp", not ".C" or ".cc" or ".cxx".  Don't create needless
 source directory hierarchies.
 1. Header files should be idempotent.  Use the usual technique:
 ```
@@ -46,11 +46,11 @@ source directory hierarchies.
 #endif  // FORTRAN_header_H_
 ```
 1. `#include` every header defining an entity that your project header or source
-file actually uses directly.  (Exception: when foo.cc starts, as it should,
+file actually uses directly.  (Exception: when foo.cpp starts, as it should,
 with `#include "foo.h"`, and foo.h includes bar.h in order to define the
 interface to the module foo, you don't have to redundantly `#include "bar.h"`
-in foo.cc.)
-1. In the source file "foo.cc", put its corresponding `#include "foo.h"`
+in foo.cpp.)
+1. In the source file "foo.cpp", put its corresponding `#include "foo.h"`
 first in the sequence of inclusions.
 Then `#include` other project headers in alphabetic order; then C++ standard
 headers, also alphabetically; then C and system headers.

flang/documentation/PullRequestChecklist.md

@@ -29,7 +29,7 @@ can also be used when reviewing pull requests.
 ## Follow the style guide
 The following items are taken from the [C++ style guide](C++style.md).  But
 even though I've read the style guide, they regularly trip me up.
-*  Run clang-format version 7 on all .cc and .h files.
+*  Run clang-format version 7 on all .cpp and .h files.
 *  Make sure that all source lines have 80 or fewer characters.  Note that
    clang-format will do this for most code.  But you may need to break up long
    strings.

flang/include/flang/evaluate/traverse.h

@@ -25,7 +25,7 @@
 // - overrides for "Result operator()"
 //
 // Boilerplate classes also appear below to ease construction of visitors.
-// See CheckSpecificationExpr() in check-expression.cc for an example client.
+// See CheckSpecificationExpr() in check-expression.cpp for an example client.
 //
 // How this works:
 // - The operator() overloads in Traverse<> invoke the visitor's Default() for

flang/lib/common/CMakeLists.txt

@@ -7,10 +7,10 @@
 #===------------------------------------------------------------------------===#
 
 add_library(FortranCommon
-  Fortran.cc
-  Fortran-features.cc
-  default-kinds.cc
-  idioms.cc
+  Fortran.cpp
+  Fortran-features.cpp
+  default-kinds.cpp
+  idioms.cpp
 )
 
 install (TARGETS FortranCommon

flang/lib/common/Fortran-features.cc flang/lib/common/Fortran-features.cpp

@@ -1,4 +1,4 @@
-//===-- lib/common/Fortran-features.cc ------------------------------------===//
+//===-- lib/common/Fortran-features.cpp -----------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/common/Fortran.cc flang/lib/common/Fortran.cpp

@@ -1,4 +1,4 @@
-//===-- lib/common/Fortran.cc ---------------------------------------------===//
+//===-- lib/common/Fortran.cpp --------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/common/default-kinds.cc flang/lib/common/default-kinds.cpp

@@ -1,4 +1,4 @@
-//===-- lib/common/default-kinds.cc ---------------------------------------===//
+//===-- lib/common/default-kinds.cpp --------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/common/idioms.cc flang/lib/common/idioms.cpp

@@ -1,4 +1,4 @@
-//===-- lib/common/idioms.cc ----------------------------------------------===//
+//===-- lib/common/idioms.cpp ---------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/decimal/CMakeLists.txt

@@ -7,8 +7,8 @@
 #===------------------------------------------------------------------------===#
 
 add_library(FortranDecimal
-  binary-to-decimal.cc
-  decimal-to-binary.cc
+  binary-to-decimal.cpp
+  decimal-to-binary.cpp
 )
 
 install (TARGETS FortranDecimal

flang/lib/decimal/binary-to-decimal.cc flang/lib/decimal/binary-to-decimal.cpp

@@ -1,4 +1,4 @@
-//===-- lib/decimal/binary-to-decimal.cc ----------------------------------===//
+//===-- lib/decimal/binary-to-decimal.cpp ---------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/decimal/decimal-to-binary.cc flang/lib/decimal/decimal-to-binary.cpp

@@ -1,4 +1,4 @@
-//===-- lib/decimal/decimal-to-binary.cc ----------------------------------===//
+//===-- lib/decimal/decimal-to-binary.cpp ---------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/CMakeLists.txt

@@ -7,31 +7,31 @@
 #===------------------------------------------------------------------------===#
 
 add_library(FortranEvaluate
-  call.cc
-  characteristics.cc
-  check-expression.cc
-  common.cc
-  complex.cc
-  constant.cc
-  expression.cc
-  fold.cc
-  fold-character.cc
-  fold-complex.cc
-  fold-integer.cc
-  fold-logical.cc
-  fold-real.cc
-  formatting.cc
-  host.cc
-  integer.cc
-  intrinsics.cc
-  intrinsics-library.cc
-  logical.cc
-  real.cc
-  shape.cc
-  static-data.cc
-  tools.cc
-  type.cc
-  variable.cc
+  call.cpp
+  characteristics.cpp
+  check-expression.cpp
+  common.cpp
+  complex.cpp
+  constant.cpp
+  expression.cpp
+  fold.cpp
+  fold-character.cpp
+  fold-complex.cpp
+  fold-integer.cpp
+  fold-logical.cpp
+  fold-real.cpp
+  formatting.cpp
+  host.cpp
+  integer.cpp
+  intrinsics.cpp
+  intrinsics-library.cpp
+  logical.cpp
+  real.cpp
+  shape.cpp
+  static-data.cpp
+  tools.cpp
+  type.cpp
+  variable.cpp
 )
 
 target_link_libraries(FortranEvaluate

flang/lib/evaluate/call.cc flang/lib/evaluate/call.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/call.cc ----------------------------------------------===//
+//===-- lib/evaluate/call.cpp ---------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/characteristics.cc flang/lib/evaluate/characteristics.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/characteristics.cc -----------------------------------===//
+//===-- lib/evaluate/characteristics.cpp ----------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/check-expression.cc flang/lib/evaluate/check-expression.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/check-expression.cc ----------------------------------===//
+//===-- lib/evaluate/check-expression.cpp ---------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/common.cc flang/lib/evaluate/common.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/common.cc --------------------------------------------===//
+//===-- lib/evaluate/common.cpp -------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/complex.cc flang/lib/evaluate/complex.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/complex.cc -------------------------------------------===//
+//===-- lib/evaluate/complex.cpp ------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/constant.cc flang/lib/evaluate/constant.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/constant.cc ------------------------------------------===//
+//===-- lib/evaluate/constant.cpp -----------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/expression.cc flang/lib/evaluate/expression.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/expression.cc ----------------------------------------===//
+//===-- lib/evaluate/expression.cpp ---------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/fold-character.cc flang/lib/evaluate/fold-character.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/fold-character.cc ------------------------------------===//
+//===-- lib/evaluate/fold-character.cpp -----------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/fold-complex.cc flang/lib/evaluate/fold-complex.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/fold-complex.cc --------------------------------------===//
+//===-- lib/evaluate/fold-complex.cpp -------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/fold-integer.cc flang/lib/evaluate/fold-integer.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/fold-integer.cc --------------------------------------===//
+//===-- lib/evaluate/fold-integer.cpp -------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/fold-logical.cc flang/lib/evaluate/fold-logical.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/fold-logical.cc --------------------------------------===//
+//===-- lib/evaluate/fold-logical.cpp -------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/fold-real.cc flang/lib/evaluate/fold-real.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/fold-real.cc -----------------------------------------===//
+//===-- lib/evaluate/fold-real.cpp ----------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/fold.cc flang/lib/evaluate/fold.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/fold.cc ----------------------------------------------===//
+//===-- lib/evaluate/fold.cpp ---------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/formatting.cc flang/lib/evaluate/formatting.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/formatting.cc ----------------------------------------===//
+//===-- lib/evaluate/formatting.cpp ---------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/host.cc flang/lib/evaluate/host.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/host.cc ----------------------------------------------===//
+//===-- lib/evaluate/host.cpp ---------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/integer.cc flang/lib/evaluate/integer.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/integer.cc -------------------------------------------===//
+//===-- lib/evaluate/integer.cpp ------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/intrinsics-library-templates.h

@@ -13,7 +13,7 @@
 // function of the structures defined in intrinsics-library.h. It should only be
 // included if these member functions are used, else intrinsics-library.h is
 // sufficient. This is to avoid circular dependencies. The below implementation
-// cannot be defined in .cc file because it would be too cumbersome to decide
+// cannot be defined in .cpp file because it would be too cumbersome to decide
 // which version should be instantiated in a generic way.
 
 #include "host.h"

flang/lib/evaluate/intrinsics-library.cc flang/lib/evaluate/intrinsics-library.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/intrinsics-library.cc --------------------------------===//
+//===-- lib/evaluate/intrinsics-library.cpp -------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/intrinsics.cc flang/lib/evaluate/intrinsics.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/intrinsics.cc ----------------------------------------===//
+//===-- lib/evaluate/intrinsics.cpp ---------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/logical.cc flang/lib/evaluate/logical.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/logical.cc -------------------------------------------===//
+//===-- lib/evaluate/logical.cpp ------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/real.cc flang/lib/evaluate/real.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/real.cc ----------------------------------------------===//
+//===-- lib/evaluate/real.cpp ---------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/shape.cc flang/lib/evaluate/shape.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/shape.cc ---------------------------------------------===//
+//===-- lib/evaluate/shape.cpp --------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/static-data.cc flang/lib/evaluate/static-data.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/static-data.cc ---------------------------------------===//
+//===-- lib/evaluate/static-data.cpp --------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/tools.cc flang/lib/evaluate/tools.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/tools.cc ---------------------------------------------===//
+//===-- lib/evaluate/tools.cpp --------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/type.cc flang/lib/evaluate/type.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/type.cc ----------------------------------------------===//
+//===-- lib/evaluate/type.cpp ---------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/evaluate/variable.cc flang/lib/evaluate/variable.cpp

@@ -1,4 +1,4 @@
-//===-- lib/evaluate/variable.cc ------------------------------------------===//
+//===-- lib/evaluate/variable.cpp -----------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

flang/lib/parser/CMakeLists.txt

@@ -7,29 +7,29 @@
 #===------------------------------------------------------------------------===#
 
 add_library(FortranParser
-  Fortran-parsers.cc
-  char-buffer.cc
-  char-block.cc
-  char-set.cc
-  characters.cc
-  debug-parser.cc
-  executable-parsers.cc
-  expr-parsers.cc
-  instrumented-parser.cc
-  io-parsers.cc
-  message.cc
-  openmp-parsers.cc
-  parse-tree.cc
-  parsing.cc
-  preprocessor.cc
-  prescan.cc
-  program-parsers.cc
-  provenance.cc
-  source.cc
-  token-sequence.cc
-  tools.cc
-  unparse.cc
-  user-state.cc
+  Fortran-parsers.cpp
+  char-buffer.cpp
+  char-block.cpp
+  char-set.cpp
+  characters.cpp
+  debug-parser.cpp
+  executable-parsers.cpp
+  expr-parsers.cpp
+  instrumented-parser.cpp
+  io-parsers.cpp
+  message.cpp
+  openmp-parsers.cpp
+  parse-tree.cpp
+  parsing.cpp
+  preprocessor.cpp
+  prescan.cpp
+  program-parsers.cpp
+  provenance.cpp
+  source.cpp
+  token-sequence.cpp
+  tools.cpp
+  unparse.cpp
+  user-state.cpp
 )
 
 target_link_libraries(FortranParser

flang/lib/parser/Fortran-parsers.cc flang/lib/parser/Fortran-parsers.cpp

@@ -1,4 +1,4 @@
-//===-- lib/parser/Fortran-parsers.cc -------------------------------------===//
+//===-- lib/parser/Fortran-parsers.cpp ------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
@@ -24,11 +24,11 @@
 // various per-type parsers are partitioned into several C++ source
 // files.  This file contains parsers for constants, types, declarations,
 // and misfits (mostly clauses 7, 8, & 9 of Fortran 2018).  The others:
-//  executable-parsers.cc  Executable statements
-//  expr-parsers.cc        Expressions
-//  io-parsers.cc          I/O statements and FORMAT
-//  openmp-parsers.cc      OpenMP directives
-//  program-parsers.cc     Program units
+//  executable-parsers.cpp  Executable statements
+//  expr-parsers.cpp        Expressions
+//  io-parsers.cpp          I/O statements and FORMAT
+//  openmp-parsers.cpp      OpenMP directives
+//  program-parsers.cpp     Program units
 
 #include "basic-parsers.h"
 #include "expr-parsers.h"