https://llvm.org/bugs/show_bug.cgi?id=24330
Bug ID: 24330
Summary: clang could emit a different diagnosti when main()
uses type deduction + fixIt
Product: clang
Version: unspecified
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: unassignedclangb...@nondot.org
Reporter: dav...@freebsd.org
CC: dgre...@apple.com, llvmbugs@cs.uiuc.edu
Classification: Unclassified
This is mainly my personal taste, but I think clang could emit a different
diagnostic when 'auto' is used as return type, e.g. "
type-deduction is not allowed for main".
main.cpp:1:1: error: 'main' must return 'int'
auto main()
^~~~
int
1 error generated.
Also, it seems we emit a note in C but we don't in C++. Maybe a FixIt could be
used? i.e. "maybe you int main(void)"
./clang main.c
main.c:1:1: warning: return type of 'main' is not 'int' [-Wmain-return-type]
float main()
^
main.c:1:1: note: change return type to 'int'
float main()
^~~~~
int
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