From e2ea3b31c94bb3e1da27c233661cb2a16699c685 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Mon, 7 Dec 2020 11:17:30 -0300
Subject: [PATCH] Details (do not affect regular code)

* Avoids multiple definitions of 'lua_assert' in test file.
* Smaller C-stack limit in test mode.
* Note in the manual about the use of false
* Extra test for constant reuse.
---
 lauxlib.h        | 10 +++++++---
 ltests.h         |  5 +++++
 manual/manual.of |  5 +++++
 testes/code.lua  | 14 ++++++++++++++
 4 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/lauxlib.h b/lauxlib.h
index df3de4f8..65714911 100644
--- a/lauxlib.h
+++ b/lauxlib.h
@@ -160,11 +160,15 @@ LUALIB_API void (luaL_requiref) (lua_State *L, const char *modname,
 /*
 ** Internal assertions for in-house debugging
 */
+#if !defined(lua_assert)
+
 #if defined LUAI_ASSERT
-#include <assert.h>
-#define lua_assert(c)	assert(c)
+  #include <assert.h>
+  #define lua_assert(c)		assert(c)
 #else
-#define lua_assert(x)	((void)0)
+  #define lua_assert(c)		((void)0)
+#endif
+
 #endif
 
 
diff --git a/ltests.h b/ltests.h
index f8c4466f..cb3a0b48 100644
--- a/ltests.h
+++ b/ltests.h
@@ -130,6 +130,11 @@ LUA_API void *debug_realloc (void *ud, void *block,
 #define LUAI_MAXSTACK   50000
 
 
+/* test mode uses more stack space */
+#undef LUAI_MAXCCALLS
+#define LUAI_MAXCCALLS	180
+
+
 /* force Lua to use its own implementations */
 #undef lua_strx2number
 #undef lua_number2strx
diff --git a/manual/manual.of b/manual/manual.of
index 606771f4..771bace0 100644
--- a/manual/manual.of
+++ b/manual/manual.of
@@ -88,6 +88,11 @@ The type @emph{boolean} has two values, @false and @true.
 Both @nil and @false make a condition false;
 they are collectively called @def{false values}.
 Any other value makes a condition true.
+Despite its name,
+@false is frequently used as an alternative to @nil,
+with the key difference that @false behaves
+like a regular value in a table,
+while a @nil in a table represents an absent key.
 
 The type @emph{number} represents both
 integer numbers and real (floating-point) numbers,
diff --git a/testes/code.lua b/testes/code.lua
index 1f971cd7..4e00309f 100644
--- a/testes/code.lua
+++ b/testes/code.lua
@@ -55,6 +55,20 @@ end
 checkKlist(foo, {3.78/4, -3.78/4, -3.79/4})
 
 
+foo = function (f, a)
+        f(100 * 1000)
+        f(100.0 * 1000)
+        f(-100 * 1000)
+        f(-100 * 1000.0)
+        f(100000)
+        f(100000.0)
+        f(-100000)
+        f(-100000.0)
+      end
+
+checkKlist(foo, {100000, 100000.0, -100000, -100000.0})
+
+
 -- testing opcodes
 
 -- check that 'f' opcodes match '...'