remove num dependency in favor of standard library

Cargo.toml

@@ -12,7 +12,6 @@ anyhow = { version = "1.0.89", features = ["backtrace"] }
 bitflags = "2.6.0"
 byteorder = "1.5.0"
 clap = { version = "4.5.19", features = ["derive"] }
-num = "0.4.3"
 num_enum = "0.7.3"
 sha1 = "0.10.6"
 

src/bin/iso2god.rs

@@ -4,8 +4,6 @@ use std::fs;
 use std::fs::File;
 use std::path::{Path, PathBuf};
 
-use num::integer::div_ceil;
-
 use anyhow::{Context, Error};
 
 use clap::{arg, command, Parser};
@@ -89,8 +87,8 @@ fn main() -> Result<(), Error> {
         source_iso_file_meta.len() - root_offset
     };
 
-    let block_count = div_ceil(data_size, god::BLOCK_SIZE as u64);
-    let part_count = div_ceil(block_count, god::BLOCKS_PER_PART);
+    let block_count = data_size.div_ceil(god::BLOCK_SIZE as u64);
+    let part_count = block_count.div_ceil(god::BLOCKS_PER_PART);
 
     let file_layout = god::FileLayout::new(&args.dest_dir, &exe_info, content_type);
 

src/iso/directory_table.rs

@@ -4,8 +4,6 @@ use std::io::{Read, Seek, SeekFrom};
 
 use bitflags::bitflags;
 
-use num::integer::div_ceil;
-
 use anyhow::Error;
 
 use super::*;
@@ -60,7 +58,7 @@ impl DirectoryTable {
     ) -> Result<DirectoryTable, Error> {
         let mut entries = Vec::<DirectoryEntry>::new();
 
-        let sector_count = div_ceil(size, SECTOR_SIZE as u32);
+        let sector_count = size.div_ceil(SECTOR_SIZE as u32);
         for sector_index in 0..sector_count {
             let sector_position =
                 ((sector + sector_index) as u64) * volume.sector_size + volume.root_offset;