src/tools/clippy/tests/ui/floating_point_arithmetic_nostd.rs


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#![feature(lang_items, start)]
#![warn(clippy::imprecise_flops)]
#![warn(clippy::suboptimal_flops)]
#![no_std]

// The following should not lint, as the suggested methods `{f16,f32,f64,f128}.mul_add()`
// and `{f16,f32,f64,f128}::abs()` are not available in no_std

pub fn mul_add() {
    let a: f64 = 1234.567;
    let b: f64 = 45.67834;
    let c: f64 = 0.0004;
    let _ = a * b + c;
}

fn fake_abs1(num: f64) -> f64 {
    if num >= 0.0 { num } else { -num }
}

#[start]
fn main(_argc: isize, _argv: *const *const u8) -> isize {
    0
}

#[panic_handler]
fn panic(_info: &core::panic::PanicInfo) -> ! {
    loop {}
}

#[lang = "eh_personality"]
extern "C" fn eh_personality() {}