zig/src-self-hosted/c_int.zig

170 lines
4.0 KiB
Zig

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