let (_tmp1, overflowed) = CheckedAdd(_tmp0, 2);assert!(!overflowed, "attempt to add with overflow"); let x = _temp1; 这就增加了很多控制流。常量传播可以先将其简化为: let _tmp0 = 24;assert!(!false, "attempt to multiply with overflow"); let _tmp1 = 26;assert!(!false, "attempt...
Regarding your patch: rustc's const evaluator has nothing whatsoever to do with the runtime panic message: Instead, when in debug mode, rustc will insert overflow checks foreverymultiplication / addition / subtraction. Thanks@TimNN! Any idea where to look for the code that inserts overflow ch...
在运行时仍然发现了溢出: thread ‘main’ panicked at ‘attempt to multiply with overflow’, src/main.rs:91:16 stack backtrace: 0: rust_begin_unwind at /rustc/7eac88abb2e57e752f3302f02be5f3ce3d7adfb4/library/std/src/panicking.rs:483 1: core::panicking::panic_fmt at /rustc/7eac88a...
thread'main' panicked at'attemptto multiply with overflow',src/main.rs:91:16stack backtrace:0:rust_begin_unwind at/rustc/7eac88abb2e57e752f3302f02be5f3ce3d7adfb4/library/std/src/panicking.rs:4831:core::panicking::panic_fmt at/rustc/7eac88abb2e57e752f3302f02be5f3ce3d7adfb4/library...
thread'main'panicked at'attempt to multiply with overflow', src/main.rs:91:16stack backtrace:0: rust_begin_unwind at/rustc/7eac88abb2e57e752f3302f02be5f3ce3d7adfb4/library/std/src/panicking.rs:4831: core::panicking::panic_fmt
fn call(_1: usize) -> usize { let mut _0: usize; let mut _2: usize; let mut _3: (usize, bool); bb0: { StorageLive(_2); _2 = _1; StorageLive(_3); // ADDED _3 = CheckedMul(move _2, const 2usize); assert(!move (_3.1: bool), "attempt to multiply with overflow"...
mul()，你真的不想要。它会导致UB溢出，而您只想丢弃溢出位。你需要的是wrapping_mul()：...
在Rust源代码中,rust/src/tools/clippy/clippy_lints/src/overflow_check_conditional.rs文件的作用是实现Clippy工具的一个过程型宏用于检查整数操作的溢出。 首先,Clippy是一个Rust的lint工具,用于在代码中检查可能潜在问题的lints。这个工具是Rust的静态分析工具集,旨在帮助开发者识别和修复代码中的常见错误、不良实践...
在Rust源代码中,rust/src/tools/clippy/clippy_lints/src/overflow_check_conditional.rs文件的作用是实现Clippy工具的一个过程型宏用于检查整数操作的溢出。 首先,Clippy是一个Rust的lint工具,用于在代码中检查可能潜在问题的lints。这个工具是Rust的静态分析工具集,旨在帮助开发者识别和修复代码中的常见错误、不良实践...
Cargo will now produce an error if you attempt to use the name of a required dependency as a feature. You can now pass the --offline flag to run cargo without accessing the network. You can find further change's in Cargo's 1.36.0 release notes. Clippy There have been numerous additions...