https://bugs.llvm.org/show_bug.cgi?id=51214
Bug ID: 51214
Summary: suggest including stdbool.h in C mode when missing
definition of true/false, etc.
Product: new-bugs
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: new bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
(From https://twitter.com/hansw2000/status/1419275810163331074)
Consider:
$ cat /tmp/a.c
#include <stdlib.h>
int foo();
int main() {
while (true) { if (foo() == 42) break; }
}
$ clang -c /tmp/a.c
/tmp/a.c:6:10: error: use of undeclared identifier 'true'; did you mean 'free'?
while (true) { if (foo() == 42) break; }
^~~~
free
/usr/include/stdlib.h:565:13: note: 'free' declared here
extern void free (void *__ptr) __THROW;
^
1 error generated.
The "did you mean 'free'" hint is amusing, but it would be more helpful if
clang suggested including stdbool.h here, like it does with many standard
library functions.
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