diff options
Diffstat (limited to 'src/tools/rustfmt/tests/source/cfg_if/detect/bit.rs')
| -rw-r--r-- | src/tools/rustfmt/tests/source/cfg_if/detect/bit.rs | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/tools/rustfmt/tests/source/cfg_if/detect/bit.rs b/src/tools/rustfmt/tests/source/cfg_if/detect/bit.rs new file mode 100644 index 000000000..578f0b16b --- /dev/null +++ b/src/tools/rustfmt/tests/source/cfg_if/detect/bit.rs @@ -0,0 +1,9 @@ +//! Bit manipulation utilities. + +/// Tests the `bit` of `x`. +#[allow(dead_code)] +#[inline] +pub(crate) fn test(x: usize, bit: u32) -> bool { + debug_assert!(bit < 32, "bit index out-of-bounds"); + x & (1 << bit) != 0 +} |