[flang] Use std::nullopt in place of empty braces in return statements.
authorpeter klausler <pklausler@nvidia.com>
Wed, 25 Jul 2018 22:13:40 +0000 (15:13 -0700)
committerpeter klausler <pklausler@nvidia.com>
Fri, 3 Aug 2018 23:23:57 +0000 (16:23 -0700)
commit439ddb334f2da162fe465aaeb45b670eb5e3ef13
tree8575f72fb10c2bbfa6eb89673057b455713190bb
parentb861018e3a1bda307b8ebe6724eb144e74e3aba6
[flang] Use std::nullopt in place of empty braces in return statements.

Original-commit: flang-compiler/f18@90e556301c47c953e13900974dd5175d07bcc8ad
Reviewed-on: https://github.com/flang-compiler/f18/pull/162
Tree-same-pre-rewrite: false
flang/documentation/C++style.md
flang/lib/parser/basic-parsers.h
flang/lib/parser/characters.cc
flang/lib/parser/characters.h
flang/lib/parser/instrumented-parser.h
flang/lib/parser/parse-state.h
flang/lib/parser/preprocessor.cc
flang/lib/parser/prescan.cc
flang/lib/parser/token-parsers.h
flang/lib/parser/user-state.cc
flang/lib/semantics/expression.cc