msb-public
/
QR-Code-generator
mirror of https://github.com/nayuki/QR-Code-generator
4
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Tweaked Rust code to narrow the bit width of QrCodeEcc.format_bits().

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pull/106/head
Project Nayuki 4 years ago
parent 455e0b2427
commit 98963e5cba
1 changed files with 2 additions and 2 deletions
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4
rust/src/lib.rs
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@ -438,7 +438,7 @@ impl QrCode {
// Calculate error correction code and pack bits // Calculate error correction code and pack bits
let bits: u32 = { let bits: u32 = {
// errcorrlvl is uint2, mask is uint3 // errcorrlvl is uint2, mask is uint3
let data: u32 = self.errorcorrectionlevel.format_bits() << 3 | u32::from(mask.value()); let data: u32 = u32::from(self.errorcorrectionlevel.format_bits() << 3 | mask.value());
let mut rem: u32 = data; let mut rem: u32 = data;
for _ in 0 .. 10 { for _ in 0 .. 10 {
rem = (rem << 1) ^ ((rem >> 9) * 0x537); rem = (rem << 1) ^ ((rem >> 9) * 0x537);
@ -949,7 +949,7 @@ impl QrCodeEcc {
// Returns an unsigned 2-bit integer (in the range 0 to 3). // Returns an unsigned 2-bit integer (in the range 0 to 3).
fn format_bits(self) -> u32 { fn format_bits(self) -> u8 {
use QrCodeEcc::*; use QrCodeEcc::*;
match self { match self {
Low => 1, Low => 1,

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