Function encodeNumber

cbor/_common_encode.ts:126–153

(
  input: number,
  output: Uint8Array,
  offset: number,
)

}

function encodeNumber(
  input: number,
  output: Uint8Array,
  offset: number,
): number {
  if (input % 1 === 0) {
    const isNegative = input < 0;
    if (isNegative && input <= -(2 ** 64)) {
      throw new RangeError(
        `Cannot encode number: It (${input}) exceeds -(2 ** 64) - 1`,
      );
    } else if (input >= 2 ** 64) {
      throw new RangeError(
        `Cannot encode number: It (${input}) exceeds 2 ** 64 - 1`,
      );
    }
    return encodeHeader(
      isNegative ? 0b001_00000 : 0b000_00000,
      isNegative ? -input - 1 : input,
      output,
      offset,
    );
  }
  const view = new DataView(output.buffer);
  output[offset++] = 0b111_11011;
  view.setFloat64(offset, input);
  return offset + 8;
}

function encodeBigInt(
  input: bigint,