Compiler Error C2180
controlling expression has type 'type'
The controlling expression in an if
, while
, for
, or do
statement is an expression cast to void
. To fix this issue, change the controlling expression to one that produces a bool
or a type that can be converted to bool
.
The following sample generates C2180:
// C2180.c
int main() {
while ((void)1) // C2180
return 1;
while (1) // OK
return 0;
}
Feedback
https://aka.ms/ContentUserFeedback.
Coming soon: Throughout 2024 we will be phasing out GitHub Issues as the feedback mechanism for content and replacing it with a new feedback system. For more information see:Submit and view feedback for