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Add tests against MPFR for modf and modff

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Rug provides `trunc_fract_round`, which implements `modf`, use it to add
a test.
This commit is contained in:
Trevor Gross 2025-01-04 09:53:58 +00:00 • committed by Trevor Gross
parent f99d8acc20
commit 59964fbbca
2 changed files with 18 additions and 4 deletions
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18
library/compiler-builtins/libm/crates/libm-test/src/mpfloat.rs
View file

@ -210,6 +210,24 @@ macro_rules! impl_op_for_ty {
}
}
impl MpOp for crate::op::[<modf $suffix>]::Routine {
type MpTy = (MpFloat, MpFloat);
fn new_mp() -> Self::MpTy {
(new_mpfloat::<Self::FTy>(), new_mpfloat::<Self::FTy>())
}
fn run(this: &mut Self::MpTy, input: Self::RustArgs) -> Self::RustRet {
this.0.assign(input.0);
this.1.assign(&this.0);
let (ord0, ord1) = this.0.trunc_fract_round(&mut this.1, Nearest);
(
prep_retval::<Self::FTy>(&mut this.1, ord0),
prep_retval::<Self::FTy>(&mut this.0, ord1),
)
}
}
impl MpOp for crate::op::[<pow $suffix>]::Routine {
type MpTy = (MpFloat, MpFloat);

4
library/compiler-builtins/libm/crates/libm-test/tests/multiprecision.rs
View file

@ -58,8 +58,6 @@ libm_macros::for_each_function! {
ilogbf,
ldexp,
ldexpf,
modf,
modff,
remquo,
remquof,
scalbn,
@ -165,7 +163,5 @@ libm_macros::for_each_function! {
frexpf,
ilogb,
ilogbf,
modf,
modff,
],
}