170 lines
4.0 KiB
Zig
170 lines
4.0 KiB
Zig
const Target = @import("std").Target;
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pub const CInt = struct {
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id: Id,
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zig_name: []const u8,
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c_name: []const u8,
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is_signed: bool,
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pub const Id = enum {
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Short,
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UShort,
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Int,
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UInt,
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Long,
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ULong,
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LongLong,
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ULongLong,
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};
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pub const list = [_]CInt{
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CInt{
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.id = .Short,
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.zig_name = "c_short",
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.c_name = "short",
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.is_signed = true,
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},
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CInt{
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.id = .UShort,
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.zig_name = "c_ushort",
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.c_name = "unsigned short",
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.is_signed = false,
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},
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CInt{
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.id = .Int,
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.zig_name = "c_int",
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.c_name = "int",
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.is_signed = true,
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},
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CInt{
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.id = .UInt,
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.zig_name = "c_uint",
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.c_name = "unsigned int",
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.is_signed = false,
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},
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CInt{
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.id = .Long,
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.zig_name = "c_long",
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.c_name = "long",
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.is_signed = true,
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},
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CInt{
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.id = .ULong,
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.zig_name = "c_ulong",
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.c_name = "unsigned long",
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.is_signed = false,
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},
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CInt{
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.id = .LongLong,
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.zig_name = "c_longlong",
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.c_name = "long long",
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.is_signed = true,
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},
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CInt{
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.id = .ULongLong,
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.zig_name = "c_ulonglong",
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.c_name = "unsigned long long",
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.is_signed = false,
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},
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};
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pub fn sizeInBits(cint: CInt, self: Target) u32 {
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const arch = self.cpu.arch;
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switch (self.os.tag) {
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.freestanding, .other => switch (self.cpu.arch) {
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.msp430 => switch (cint.id) {
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.Short,
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.UShort,
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.Int,
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.UInt,
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=> return 16,
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.Long,
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.ULong,
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=> return 32,
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.LongLong,
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.ULongLong,
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=> return 64,
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},
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else => switch (cint.id) {
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.Short,
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.UShort,
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=> return 16,
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.Int,
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.UInt,
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=> return 32,
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.Long,
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.ULong,
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=> return self.cpu.arch.ptrBitWidth(),
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.LongLong,
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.ULongLong,
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=> return 64,
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},
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},
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.linux,
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.macosx,
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.freebsd,
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.openbsd,
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=> switch (cint.id) {
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.Short,
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.UShort,
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=> return 16,
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.Int,
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.UInt,
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=> return 32,
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.Long,
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.ULong,
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=> return self.cpu.arch.ptrBitWidth(),
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.LongLong,
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.ULongLong,
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=> return 64,
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},
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.windows, .uefi => switch (cint.id) {
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.Short,
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.UShort,
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=> return 16,
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.Int,
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.UInt,
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=> return 32,
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.Long,
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.ULong,
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.LongLong,
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.ULongLong,
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=> return 64,
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},
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.ananas,
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.cloudabi,
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.dragonfly,
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.fuchsia,
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.ios,
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.kfreebsd,
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.lv2,
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.netbsd,
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.solaris,
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.haiku,
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.minix,
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.rtems,
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.nacl,
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.cnk,
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.aix,
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.cuda,
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.nvcl,
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.amdhsa,
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.ps4,
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.elfiamcu,
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.tvos,
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.watchos,
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.mesa3d,
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.contiki,
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.amdpal,
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.hermit,
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.hurd,
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.wasi,
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.emscripten,
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=> @panic("TODO specify the C integer type sizes for this OS"),
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}
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}
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};
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