mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-15 09:27:25 +00:00
95 lines
2 KiB
Rust
95 lines
2 KiB
Rust
#![feature(plugin)]
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#![plugin(clippy)]
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#[warn(cast_precision_loss, cast_possible_truncation, cast_sign_loss, cast_possible_wrap, cast_lossless)]
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#[allow(no_effect, unnecessary_operation)]
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fn main() {
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// Test cast_precision_loss
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1i32 as f32;
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1i64 as f32;
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1i64 as f64;
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1u32 as f32;
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1u64 as f32;
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1u64 as f64;
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// Test cast_possible_truncation
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1f32 as i32;
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1f32 as u32;
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1f64 as f32;
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1i32 as i8;
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1i32 as u8;
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1f64 as isize;
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1f64 as usize;
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// Test cast_possible_wrap
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1u8 as i8;
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1u16 as i16;
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1u32 as i32;
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1u64 as i64;
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1usize as isize;
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// Test cast_lossless with casts to integer types
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1i8 as i16;
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1i8 as i32;
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1i8 as i64;
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1u8 as i16;
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1u8 as i32;
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1u8 as i64;
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1u8 as u16;
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1u8 as u32;
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1u8 as u64;
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1i16 as i32;
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1i16 as i64;
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1u16 as i32;
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1u16 as i64;
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1u16 as u32;
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1u16 as u64;
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1i32 as i64;
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1u32 as i64;
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1u32 as u64;
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// Test cast_lossless with casts to floating-point types
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1i8 as f32;
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1i8 as f64;
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1u8 as f32;
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1u8 as f64;
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1i16 as f32;
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1i16 as f64;
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1u16 as f32;
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1u16 as f64;
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1i32 as f64;
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1u32 as f64;
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// Test cast_lossless with casts from floating-point types
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1.0f32 as f64;
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// Test cast_lossless with an expression wrapped in parens
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(1u8 + 1u8) as u16;
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// Test cast_sign_loss
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1i32 as u32;
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1isize as usize;
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// Extra checks for *size
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// Casting from *size
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1isize as i8;
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1isize as f64;
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1usize as f64;
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1isize as f32;
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1usize as f32;
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1isize as i32;
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1isize as u32;
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1usize as u32;
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1usize as i32;
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// Casting to *size
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1i64 as isize;
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1i64 as usize;
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1u64 as isize;
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1u64 as usize;
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1u32 as isize;
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1u32 as usize; // Should not trigger any lint
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1i32 as isize; // Neither should this
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1i32 as usize;
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// Test cast_unnecessary
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1i32 as i32;
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1f32 as f32;
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false as bool;
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&1i32 as &i32;
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// Should not trigger
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let v = vec!(1);
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&v as &[i32];
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1.0 as f64;
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1 as u64;
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}
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