Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-28 15:41:40 +00:00
Code Issues Projects Releases Packages Wiki Activity

log: document the assign() macro

Browse source 
Provide a concise description of the assert() macro. Point out that the
tested expression is always executed, irrespective of the value of _DEBUG.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Heinrich Schuchardt 2019-07-27 20:21:06 +02:00 committed by Tom Rini
parent 102b0b1119
commit b236f8c086
1 changed files with 12 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
include/log.h
View file

@ -183,6 +183,18 @@ int _log(enum log_category_t cat, enum log_level_t level, const char *file,
*/
void __assert_fail(const char *assertion, const char *file, unsigned int line,
const char *function);
/**
* assert() - assert expression is true
*
* If the expression x evaluates to false and _DEBUG evaluates to true, a panic
* message is written and the system stalls. The value of _DEBUG is set to true
* if DEBUG is defined before including common.h.
*
* The expression x is always executed irrespective of the value of _DEBUG.
*
* @x: expression to test
*/
#define assert(x) \
({ if (!(x) && _DEBUG) \
__assert_fail(#x, __FILE__, __LINE__, __func__); })