https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101628
--- Comment #3 from David Post ---
This seems to be implementation dependent. As per 15.1.6:
The implementation can process and skip sections of source files conditionally,
include other source files, import macros from header units, and replace
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101628
Bug ID: 101628
Summary: Preprocessor errors on extended characters in #if 0
code block
Product: gcc
Version: 10.3.0
Status: UNCONFIRMED
Severity: normal
