RGBCube/uutils-coreutils
1
Fork 0
mirror of https://github.com/RGBCube/uutils-coreutils synced 2025-07-28 11:37:44 +00:00
Code Issues Activity

uucore: fast_inc: Add a debug_assert for developer convenience

Browse source 
Suggested by our AI overlords.
This commit is contained in:
Nicolas Boichat 2025-04-21 11:31:08 +02:00
parent 4fe0da46ba
commit e84de9b97f
1 changed files with 10 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

10
src/uucore/src/lib/features/fast_inc.rs
View file

@ -35,6 +35,11 @@ pub fn fast_inc(val: &mut [u8], start: &mut usize, end: usize, inc: &[u8]) {
// First loop, add all digits of inc into val.
for inc_pos in (0..inc.len()).rev() {
// The decrement operation would also panic in debug mode, print a message for developer convenience.
debug_assert!(
pos > 0,
"Buffer overflowed, make sure you allocate val with enough headroom."
);
pos -= 1;
let mut new_val = inc[inc_pos] + carry;
@ -99,6 +104,11 @@ pub fn fast_inc_one(val: &mut [u8], start: &mut usize, end: usize) {
}
}
// The following decrement operation would also panic in debug mode, print a message for developer convenience.
debug_assert!(
*start > 0,
"Buffer overflowed, make sure you allocate val with enough headroom."
);
// The carry propagated so far that a new digit was added.
val[*start - 1] = b'1';
*start -= 1;