testdata/division_modulus.emb

# Copyright 2026 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
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#
#     https://www.apache.org/licenses/LICENSE-2.0
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# distributed under the License is distributed on an "AS IS" BASIS,
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# Test data for the `//` (flooring integer division) and `%` (flooring modulus)
# operators.

[$default byte_order: "LittleEndian"]
[(cpp) namespace: "emboss::test"]


struct ArrayOfUint16BySizeInBytes:
  0 [+1]              UInt        size_in_bytes (n)
  1 [+(n // 2) * 2]   UInt:16[]   elements


struct ChunkedPayload:
  0 [+1]                UInt          chunk_count (n)
  # Round n up to a multiple of 4 by adding 3 and flooring-dividing.
  1 [+((n + 3) // 4) * 4]  UInt:8[]   padded


# Virtual fields exercise constant folding through // and %.
struct Constants:
  let exact_quotient = 100 // 5
  let truncating_quotient = 100 // 7
  let negative_quotient = (0 - 7) // 2
  let exact_modulus = 100 % 5
  let truncating_modulus = 100 % 7
  let negative_modulus = (0 - 7) % 2
  let chained_div = 100 // 5 // 2
  let chained_mod = 17 % 7 % 4
  let mixed_divmod = 17 % 7 // 2