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add function to validate 64 bit binary input

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This commit is contained in:
atsiv sivat 2026-03-08 01:00:29 +00:00
parent fd1be923b2
commit 8fd7aec61c
1 changed files with 13 additions and 1 deletions
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14
src/core/lib/IEEEBinary.mjs
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@ -42,6 +42,18 @@ function validateDecimal(input) {
throw new Error("Invalid decimal number"); throw new Error("Invalid decimal number");
} }
function validateBinary64(input) {
input = normaliseInput(input);
if (!/^[01\s]+$/.test(input))
throw new Error("Binary64 must contain only 0 and 1");
if (input.replace(/\s+/g,"").length !== 64)
throw new Error("Binary64 must be exactly 64 bits");
return input.replace(/\s+/g,"");
}
/** /**
* Compute 10^exp as BigInt without using ** on BigInt, to avoid * Compute 10^exp as BigInt without using ** on BigInt, to avoid
@ -141,7 +153,7 @@ function fractionToDecimal(num, den) {
* FromIEEE754Float64("0 10000000001 1101001100110011001100110011001100110011001100110011); * FromIEEE754Float64("0 10000000001 1101001100110011001100110011001100110011001100110011);
*/ */
export function FromIEEE754Float64(binary64String) { export function FromIEEE754Float64(binary64String) {
const bin = binary64String.trim().replace(/\s+/g, ""); const bin = validateBinary64(binary64String);
if (bin.length !== 64) { if (bin.length !== 64) {
throw new Error("Input must be 64 bits."); throw new Error("Input must be 64 bits.");