From 284f0d364588821ba7e2ea0c42845fcbbf722290 Mon Sep 17 00:00:00 2001
From: daxpedda <1645124+daxpedda@users.noreply.github.com>
Date: Wed, 26 Dec 2018 18:19:46 +0100
Subject: [PATCH] Document that `-C opt-level=0` implies `-C debug-assertions`.

---
 src/doc/rustc/src/codegen-options/index.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/doc/rustc/src/codegen-options/index.md b/src/doc/rustc/src/codegen-options/index.md
index 94f21042c8fdd..a616409d9a400 100644
--- a/src/doc/rustc/src/codegen-options/index.md
+++ b/src/doc/rustc/src/codegen-options/index.md
@@ -187,7 +187,7 @@ This flag lets you control debug information:
 
 This flag lets you control the optimization level.
 
-* `0`: no optimizations
+* `0`: no optimizations, also turn on `cfg(debug_assertions)`.
 * `1`: basic optimizations
 * `2`: some optimizations
 * `3`: all optimizations