compiler What about endianness? There are not infrequent reasons to swap bytes: • Network endiannes to Processor endianness • Cryptographic endianness to Processor endianness • HW Bugs (yes, they constexpr) What about endianness? There are not infrequent reasons to swap bytes: • Network endiannes to Processor endianness • Cryptographic endianness to Processor endianness • HW Bugs (yes, they

Endianess : Byte Visibility: public Access: Read Description: This property holds the byte order (endianness) of the file that has been read. Remark Obviously, this property is meaningful only after a file characters that form the string FPCRES| |version|6|byte|File format version. Currently it is 1.| |endianness|7|byte|Byte order. 1 for big endian, 2 for little endian| |count|8|longword|Number of resources (88). EXT_ENDIAN_BIG = 1 This value is used for TExtHeader.endianness (88). EXT_ENDIAN_LITTLE = 2 This value is used for TExtHeader.endianness (88). #### 11.3.2 Types Array = Array[1..6] of Char Type

both operand modes. BPF_ALU64 also contains a signed right shift. BPF_ALU additionally contains endianness conversion instructions for half-word / word / double-word on a given source register. BPF JMP uses the endianness of the CPU it compiles on, meaning that if the CPU's endianness is little endian, the program is represented in little endian format as well, and if the CPU's endianness is big endian. This also matches the runtime behavior of BPF, which is generic and uses the CPU's endianness it runs on in order to not disadvantage architectures in any of the format. For cross-compilation

both operand modes. BPF_ALU64 also contains a signed right shift. BPF_ALU additionally contains endianness conversion instructions for halfword / word / double-word on a given source register. - BPF_JMP: uses the endianness of the CPU it compiles on, meaning that if the CPU's endianness is little endian, the program is represented in little endian format as well, and if the CPU's endianness is big endian. This also matches the runtime behavior of BPF, which is generic and uses the CPU's endianness it runs on in order to not disadvantage architectures in any of the format. For cross-compilation

fields are packed into the smallest possible ABI-aligned integers in accordance with the target endianness. This means that a packed struct can participate in a @bitCast or a @ptrCast to reinterpret endian integer to a big endian integer. Note that for the purposes of memory layout with respect to endianness, the integer type should be related to the number of bytes reported by @sizeOf bytes. This is demonstrated tests passed. This function always truncates the significant bits of the integer, regardless of endianness on the target platform. ## @Type @Type(comptime info: @import("builtin").TypeInfo) type

fields are packed into the smallest possible ABI-aligned integers in accordance with the target endianness. This means that a packed struct can participate in a @bitCast or a @ptrCast to reinterpret endian integer to a big endian integer. Note that for the purposes of memory layout with respect to endianness, the integer type should be related to the number of bytes reported by @sizeOf bytes. This is demonstrated tests passed. This function always truncates the significant bits of the integer, regardless of endianness on the target platform. If T is comptime_int, then this is semantically equivalent to an implicit

both operand modes. BPF_ALU64 also contains a signed right shift. BPF_ALU additionally contains endianness conversion instructions for half- word / word / double-word on a given source register. BPF_JMP: target uses the endianness of the CPU it compiles on, meaning that if the CPU’s endianness is little endian, the program is represented in little endian format as well, and if the CPU’s endianness is big endian big endian. This also matches the runtime behavior of BPF, which is generic and uses the CPU’s endianness it runs on in order to not disadvantage architectures in any of the format. For cross-compilation

struct packed struts have guaranteed in-memory layout. TODO bit fields TODO alignment TODO endianness TODO @bitOffsetOf and @byteOffsetOf TODO mention how volatile loads and stores of bit packed is now 0xcd This function always truncates the significant bits of the integer, regardless of endianness on the target platform. ## @typeId @typeId(comptime T: type) @import("builtin").TypeId available to every Zig source file. It contains compile-time constants such as the current target, endianness, and release mode. const builtin = @import("builtin"); const separator = if (builtin.os

fields are packed into the smallest possible ABI-aligned integers in accordance with the target endianness. This means that a packed struct can participate in a @bitCast or a @ptrCast to reinterpret endian integer to a big endian integer. Note that for the purposes of memory layout with respect to endianness, the integer type should be related to the number of bytes reported by @sizeOf bytes. This is demonstrated tests passed. This function always truncates the significant bits of the integer, regardless of endianness on the target platform. ## @Type @Type(comptime info: std.builtin.TypeInfo) type This function

fields are packed into the smallest possible ABI-aligned integers in accordance with the target endianness. This means that a packed struct can participate in a @bitCast or a @ptrCast to reinterpret memory endian integer to a big endian integer. Note that for the purposes of memory layout with respect to endianness, the integer type should be related to the number of bytes reported by @sizeOf bytes. This is demonstrated tests passed. This function always truncates the significant bits of the integer, regardless of endianness on the target platform. ## @Type @Type(comptime info: @import("builtin").TypeInfo) type