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Document the purpose of a helper module

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quaternic 2025-12-05 14:29:37 +02:00 • committed by Trevor Gross
parent 21b89a9bf5
commit ec65d89176
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4
library/compiler-builtins/libm/src/math/support/modular.rs
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/* SPDX-License-Identifier: MIT OR Apache-2.0 */
//! This module provides accelerated modular multiplication by large powers
//! of two, which is needed for computing floating point remainders in `fmod`
//! and similar functions.
//!
//! To keep the equations somewhat concise, the following conventions are used:
//! - all integer operations are in the mathematical sense, without overflow
//! - concatenation means multiplication: `2xq = 2 * x * q`