From 70d7f87be00aa1a372c856759948fd62666be295 Mon Sep 17 00:00:00 2001
From: Cody Tapscott <topolarity@tapscott.me>
Date: Thu, 10 Feb 2022 13:29:48 -0700
Subject: Fix up sign handling and add arbitrary-length integer support to
 @bitCast()

---
 src/value.zig | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'src/value.zig')

diff --git a/src/value.zig b/src/value.zig
index 33a75e08bb..2018eb3df3 100644
--- a/src/value.zig
+++ b/src/value.zig
@@ -1093,8 +1093,9 @@ pub const Value = extern union {
             .Int => {
                 const int_info = ty.intInfo(target);
                 const endian = target.cpu.arch.endian();
-                // TODO use a correct amount of limbs
-                const limbs_buffer = try arena.alloc(std.math.big.Limb, 2);
+                const Limb = std.math.big.Limb;
+                const limb_count = (buffer.len + @sizeOf(Limb) - 1) / @sizeOf(Limb);
+                const limbs_buffer = try arena.alloc(Limb, limb_count);
                 var bigint = BigIntMutable.init(limbs_buffer, 0);
                 bigint.readTwosComplement(buffer, int_info.bits, endian, int_info.signedness);
                 return fromBigInt(arena, bigint.toConst());
-- 
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