fluencelabs/assemblyscript
1
0
Fork 0
mirror of https://github.com/fluencelabs/assemblyscript synced 2025-06-12 14:31:28 +00:00
Code Issues Projects Releases Wiki Activity

Simplify isFinite & isNaN (#78)

Browse Source
This commit is contained in:
Max Graey
2018-04-18 16:14:24 +03:00
committed by Daniel Wirtz
parent 5a2f834c0d
commit a15457d8b9
13 changed files with 132 additions and 409 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
std/assembly/builtins.ts
View File

@ -13,19 +13,11 @@ export const NaN: f64 = 0 / 0;
export const Infinity: f64 = 1 / 0;
export function isNaN<T>(value: T): bool {
return isFloat(value)
? sizeof<T>() == 32
? (reinterpret<u32>(value) & -1 >>> 1) > 0xFF << 23
: (reinterpret<u64>(value) & -1 >>> 1) > 0x7FF << 52
: false;
return value != value;
}
export function isFinite<T>(value: T): bool {
return isFloat(value)
? sizeof<T>() == 32
? (reinterpret<u32>(value) & -1 >>> 1) < 0xFF << 23
: (reinterpret<u64>(value) & -1 >>> 1) < 0x7FF << 52
: true;
return value - value == 0;
}
export declare function clz<T>(value: T): T;