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[PATCH gnumach 1/3] kern: improve assert
From: |
Justus Winter |
Subject: |
[PATCH gnumach 1/3] kern: improve assert |
Date: |
Fri, 19 Dec 2014 02:48:56 +0100 |
Use the ternary operator to implement `assert' like it is done in the
glibc. The glibcs changelog does not mention the rationale behind
this change, but it does improve our IPC performance.
* kern/assert.h (assert): Define macro using the ternary operator.
---
kern/assert.h | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/kern/assert.h b/kern/assert.h
index b074fbb..bd2a8be 100644
--- a/kern/assert.h
+++ b/kern/assert.h
@@ -39,10 +39,9 @@
extern void Assert(const char *exp, const char *filename, int line)
__attribute__ ((noreturn));
#define assert(ex) \
-MACRO_BEGIN \
- if (!(ex)) \
- Assert(#ex, __FILE__, __LINE__); \
-MACRO_END
+ ((ex) \
+ ? (void) (0) \
+ : Assert (#ex, __FILE__, __LINE__))
#define assert_static(x) assert(x)
--
2.1.3
- [PATCH gnumach 1/3] kern: improve assert,
Justus Winter <=
Re: [PATCH gnumach 1/3] kern: improve assert, Samuel Thibault, 2014/12/20