negative float to unsigned int

test_burkhard.cpp

$  cat test_burkhard.cpp
int main()
{
    float f = -5.33;
    unsigned int n = static_cast<unsigned int>(f);
    return 0;
}

$  clang++ -fsanitize=undefined test_burkhard.cpp

$  ./a.out
test_burkhard.cpp:4:48: runtime error: -5.33 is outside the range of representable values of type 'unsigned int'
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior test_burkhard.cpp:4:48 in

$  clang++ --version
clang version 11.0.0 (https://github.com/llvm/llvm-project.git 0160ad802e899c2922bc9b29564080c22eb0908c)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/chaturvedi/.linuxbrew/bin