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method Decoder.readI64

Reads a signed integer of up to 64 bits.

Example:

oxl✓ checked in CI
use std.ser { Codec, Encoder, Decoder, Schema, encode, decode, hex, EncodeError, DecodeError }

data Plus {}

impl Codec<i64> for Plus {
  static fn encode(x: &i64, w: &var Encoder) -> () | EncodeError { w.writeI64(x) }
  static fn decode(r: &var Decoder) -> i64 | DecodeError { r.readI64() }
  static fn schema() -> Schema => Schema.of("int64")
}

data Wrap {
  @codec(Plus) n: i64
}

fn main() io {
  let b = encode(&Wrap{ n: -5 })!
  print("{decode<Wrap>(&b)!.n}")
}
Output
-5
var fn readI64() -> i64 | DecodeError

Since. 1.0.0-beta

Returns

i64

Errors

  • DecodeError @error
  • `DecodeError.Malformed` when the next value is not an integer.

Effects

none declared (pure unless the body says otherwise)

Defined in: std/ser/ser.oxl:1519

See also