From e073c8a2b1570b24a659ebaeddacf957c15229fa Mon Sep 17 00:00:00 2001
From: Charles Shenton <cshenton@users.noreply.github.com>
Date: Fri, 17 Apr 2020 14:29:02 +0100
Subject: [PATCH 1/3] Update ziggurat.zig to use `random.int(u64)`

Ziggurat rng was using deprecated `random.scalar(u64)` which was causing compile errors on calls to public facing stdlib APIs (randExp) on 0.6+, this fixed those errors.
---
 lib/std/rand/ziggurat.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/std/rand/ziggurat.zig b/lib/std/rand/ziggurat.zig
index c29d3eeb2..a9b11bf4a 100644
--- a/lib/std/rand/ziggurat.zig
+++ b/lib/std/rand/ziggurat.zig
@@ -16,7 +16,7 @@ pub fn next_f64(random: *Random, comptime tables: ZigTable) f64 {
     while (true) {
         // We manually construct a float from parts as we can avoid an extra random lookup here by
         // using the unused exponent for the lookup table entry.
-        const bits = random.scalar(u64);
+        const bits = random.int(u64);
         const i = @as(usize, bits & 0xff);
 
         const u = blk: {

From ca38b188798cda8377c56cdbd0858df08f8c503f Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Sat, 18 Apr 2020 14:41:25 -0400
Subject: [PATCH 2/3] rand: ref the decls so they get tested

---
 lib/std/rand.zig | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/std/rand.zig b/lib/std/rand.zig
index 5b4655bc5..299d87d39 100644
--- a/lib/std/rand.zig
+++ b/lib/std/rand.zig
@@ -1123,3 +1123,7 @@ fn testRangeBias(r: *Random, start: i8, end: i8, biased: bool) void {
         }
     }
 }
+
+test "" {
+    std.meta.refAllDecls(@This());
+}

From 3817420d42dd07fa9a48e1a7521cb520539b6f64 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Sat, 18 Apr 2020 14:41:33 -0400
Subject: [PATCH 3/3] ziggurat uses `@truncate` instead of `& 0xff`

This makes it work on 32-bit targets.

closes #2939
---
 lib/std/rand/ziggurat.zig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/std/rand/ziggurat.zig b/lib/std/rand/ziggurat.zig
index a9b11bf4a..06728f170 100644
--- a/lib/std/rand/ziggurat.zig
+++ b/lib/std/rand/ziggurat.zig
@@ -17,7 +17,7 @@ pub fn next_f64(random: *Random, comptime tables: ZigTable) f64 {
         // We manually construct a float from parts as we can avoid an extra random lookup here by
         // using the unused exponent for the lookup table entry.
         const bits = random.int(u64);
-        const i = @as(usize, bits & 0xff);
+        const i = @as(usize, @truncate(u8, bits));
 
         const u = blk: {
             if (tables.is_symmetric) {