https://llvm.org/bugs/show_bug.cgi?id=25467
Bug ID: 25467
Summary: Warn on pointer to bool conversion
Product: clang
Version: 3.6
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: Frontend
Assignee: unassignedclangb...@nondot.org
Reporter: ma...@braunis.de
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
C/C++ have implicit conversions from pointers too bool. While this is nice for
if() statements, this often not useful in other contexts such as function
arguments, like the following example (which emits no warning with
-Weverything):
void print(bool verbose);
void func(void *pointer) {
print(pointer);
}
It would be nice to provide a warning for these cases.
Note that -Wpointer-bool-conversion already exists but seems to deal with the
"if (function)" case where the programming forgot the function call braces and
the function pointer degrades to a bool.
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