https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103812
Bug ID: 103812
Summary: -fcond-mismatch could use a testcase that covers its
documented behavior better
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: documentation
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: egallager at gcc dot gnu.org
CC: jsm28 at gcc dot gnu.org
Target Milestone: ---
Continuing my current re-read of the GCC docs (from bug 103810), I came across
the -fcond-mismatch option, the docs for which say:
"Allow conditional expressions with mismatched types in the second and third
arguments. The value of such an expression is void. This option is not
supported for C++."
https://gcc.gnu.org/onlinedocs/gcc/C-Dialect-Options.html#C-Dialect-Options
However, the only place where I can find this option tested in the testsuite is
in gcc/testsuite/gcc.dg/pch/valid-6.c, which doesn't contain any conditional
expressions, it just includes a header (which doesn't contain any conditional
expressions either), and defines a variable. Having a testcase that actually
tests the feature being documented would be helpful for people looking to
understand what its intended behavior is.
(cc-ing last person to write a ChangeLog entry mentioning the option that I
could find)
