From abf3cc617d3722ee89f4086101f708abcf4eaa23 Mon Sep 17 00:00:00 2001
From: "A. Molzer" <5550310+197g@users.noreply.github.com>
Date: Thu, 5 Feb 2026 02:46:10 +0100
Subject: [PATCH] Bump MSRV to 1.88

---
 .github/workflows/rust.yml | 8 ++++----
 Cargo.toml                 | 2 +-
 src/decoder/image.rs       | 2 +-
 src/encoder/mod.rs         | 2 +-
 src/encoder/writer.rs      | 2 +-
 5 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index fe3ebab..3462807 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -9,14 +9,14 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        rust: ["1.85.0", stable, beta, nightly]
+        rust: ["1.88.0", stable, beta, nightly]
     steps:
     - uses: actions/checkout@v2
 
     - uses: dtolnay/rust-toolchain@nightly
-      if: ${{ matrix.rust == '1.85.0' }}
+      if: ${{ matrix.rust == '1.88.0' }}
     - name: Generate Cargo.lock with minimal-version dependencies
-      if: ${{ matrix.rust == '1.85.0' }}
+      if: ${{ matrix.rust == '1.88.0' }}
       run: cargo -Zminimal-versions generate-lockfile
 
     - uses: dtolnay/rust-toolchain@v1
@@ -29,7 +29,7 @@ jobs:
     - name: build
       run: cargo build -v
     - name: test
-      if: ${{ matrix.rust != '1.85.0' }}
+      if: ${{ matrix.rust != '1.88.0' }}
       run: cargo test -v && cargo doc -v
 
   features:
diff --git a/Cargo.toml b/Cargo.toml
index f90327a..c1a7f0f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2021"
 resolver = "2"
 
 # note: when changed, also update test runner in `.github/workflows/rust.yml`
-rust-version = "1.85.0"
+rust-version = "1.88.0"
 
 license = "MIT"
 description = "TIFF decoding and encoding library in pure Rust"
diff --git a/src/decoder/image.rs b/src/decoder/image.rs
index 4af80e9..7972f19 100644
--- a/src/decoder/image.rs
+++ b/src/decoder/image.rs
@@ -1029,7 +1029,7 @@ impl Image {
 
             debug_assert!(bits_per_pixel >= photometric_bit_end);
 
-            if bits_per_pixel % 8 != 0 || photometric_bit_end % 8 != 0 {
+            if !bits_per_pixel.is_multiple_of(8) || !photometric_bit_end.is_multiple_of(8) {
                 return Err(TiffError::UnsupportedError(
                     TiffUnsupportedError::InterpretationWithBits(
                         self.photometric_interpretation,
diff --git a/src/encoder/mod.rs b/src/encoder/mod.rs
index 8f1cb20..b043a4d 100644
--- a/src/encoder/mod.rs
+++ b/src/encoder/mod.rs
@@ -403,7 +403,7 @@ impl<'a, W: 'a + Write + Seek, K: TiffKind> DirectoryEncoder<'a, W, K> {
     /// Returns an [`Entry`]. If the value is short enough it will *not* be written in the file but
     /// stored in the entry's offset field.
     pub fn write_entry_bytes(&mut self, ty: Type, data: &[u8]) -> TiffResult<Entry> {
-        if data.len() % usize::from(ty.byte_len()) != 0 {
+        if !data.len().is_multiple_of(usize::from(ty.byte_len())) {
             return Err(TiffError::UsageError(UsageError::MismatchedEntryLength {
                 ty,
                 found: data.len(),
diff --git a/src/encoder/writer.rs b/src/encoder/writer.rs
index 6b7eb16..468ddf5 100644
--- a/src/encoder/writer.rs
+++ b/src/encoder/writer.rs
@@ -172,7 +172,7 @@ impl<W: Write> TiffWriter<W> {
     }
 
     pub fn pad_word_boundary(&mut self) -> Result<(), io::Error> {
-        if self.offset % 4 != 0 {
+        if !self.offset.is_multiple_of(4) {
             let padding = [0, 0, 0];
             let padd_len = 4 - (self.offset % 4);
             self.writer.write_all(&padding[..padd_len as usize])?;