Zig 0.17.0-dev (Split by item)

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applyOffset

Since register rules are applied (usually) during a panic, checked addition / subtraction is used so that we can return an error and fall back to FP-based unwinding.

SelfUnwinder.applyOffset

fn applyOffset(base: usize, offset: i64) !usize

File

lib/std/debug/Dwarf/SelfUnwinder.zig:310

Code

fn applyOffset(base: usize, offset: i64) !usize {
    return if (offset >= 0)
        try std.math.add(usize, base, @as(usize, @intCast(offset)))
    else
        try std.math.sub(usize, base, @as(usize, @intCast(-offset)));
}