balazske added a comment.
The problem with `fgetc` is here that the returned value indicates not only if
there was failure or not. In the following (over simplified) example no warning
is needed even if there is no check for EOF. Because this case, for such kind
of functions any comparison of the return value should be treated as an error
check. Similar functions are the `strtol` family.
c = fgetc(fd);
if (c == 'a') {
// this is the expected input
} else {
// any other value is handled as error
}
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D72705/new/
https://reviews.llvm.org/D72705
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