flatbuffers-bigfoot/tests/alignment_test.fbs

// sizeof(BadAlignmentSmall) == 12
// alignof(BadAlignmentSmall) == 4
struct BadAlignmentSmall {
  var_0: uint;
  var_1: uint;
  var_2: uint;
}

// sizeof(BadAlignmentLarge) == 8
// alignof(BadAlignmentLarge) == 8
struct BadAlignmentLarge {
  var_0: ulong;
}

table OuterLarge {
  large: BadAlignmentLarge;
}

table BadAlignmentRoot {
  large: OuterLarge;
  small: [BadAlignmentSmall];
}

// sizeof(EvenSmallStruct) == 2
// alignof(EvenSmallStruct) == 1
struct EvenSmallStruct {
  var_0: uint8;
  var_1: uint8;
}

// sizeof(OddSmallStruct) == 3
// alignof(OddSmallStruct) == 1
struct OddSmallStruct {
  var_0: uint8;
  var_1: uint8;
  var_2: uint8;
}

table SmallStructs {
  even_structs: [EvenSmallStruct];
  odd_structs: [OddSmallStruct];
}

root_type SmallStructs;