Zig 0.17.0-dev (Split by item)

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transTypeIntWidthOf

Produces a Zig AST node by translating a Type, respecting the width, but modifying the signed-ness. Asserts the type is an integer.

Translator.transTypeIntWidthOf

fn transTypeIntWidthOf(t: *Translator, qt: QualType, is_signed: bool) TypeError!ZigNode

File

lib/compiler/translate-c/Translator.zig:1534

Code

fn transTypeIntWidthOf(t: *Translator, qt: QualType, is_signed: bool) TypeError!ZigNode {
    return ZigTag.type.create(t.arena, loop: switch (qt.base(t.comp).type) {
        .int => |int_ty| switch (int_ty) {
            .char, .schar, .uchar => if (is_signed) "i8" else "u8",
            .short, .ushort => if (is_signed) "c_short" else "c_ushort",
            .int, .uint => if (is_signed) "c_int" else "c_uint",
            .long, .ulong => if (is_signed) "c_long" else "c_ulong",
            .long_long, .ulong_long => if (is_signed) "c_longlong" else "c_ulonglong",
            .int128, .uint128 => if (is_signed) "i128" else "u128",
        },
        .bit_int => |bit_int_ty| try std.fmt.allocPrint(t.arena, "{s}{d}", .{
            if (is_signed) "i" else "u",
            bit_int_ty.bits,
        }),
        .@"enum" => |enum_ty| blk: {
            const tag_ty = enum_ty.tag orelse
                break :blk if (is_signed) "c_int" else "c_uint";

            continue :loop tag_ty.base(t.comp).type;
        },
        else => unreachable, // only call this function when it has already been determined the type is int
    });
}