assert.h File Reference

#include <htils/basictypes.h>

Go to the source code of this file.

Macros
#define	_GNU_SOURCE
#define	htils_assert(expr)
	Assert that expr is true, terminating the program otherwise.

Functions
_Noreturn void	__htils_assert_fail (const cstr *expr_str, const cstr *executable, const cstr *file, u32 line, const cstr *func)
	Terminates the program with an error message.

Variables
cstr *	program_invocation_short_name
	The name of the program, exposed by the GNU standard.

Macro Definition Documentation

_GNU_SOURCE

#define _GNU_SOURCE

For using the GNU extension program_invocation_short_name

htils_assert

#define htils_assert

(

expr

)

Value:

((expr) ? (void)0                                                            \
        : __htils_assert_fail(#expr, program_invocation_short_name,          \
                              __FILE__, __LINE__, __func__))

Assert that expr is true, terminating the program otherwise.

On failure, calls __htils_assert_fail() with the expression text, the program name, and the file/line/function via __FILE__, __LINE__, and __func__.

Parameters

expr	The expression to assert.

See also

__htils_assert_fail()

Function Documentation

__htils_assert_fail()

_Noreturn void __htils_assert_fail	(	const cstr *	expr_str,
		const cstr *	executable,
		const cstr *	file,
		u32	line,
		const cstr *	func )

Terminates the program with an error message.

Prints the error message to stderr, and then terminates the program using exit().

Note

This function should never be run directly, and is run by htils_assert() on a failed assertion.

Parameters

expr_str	The expression as string.
executable	The executable name.
file	The file name.
line	The line number.
func	The function name.

See also

htils_assert(), exit()

Variable Documentation

program_invocation_short_name

cstr* program_invocation_short_name

extern

The name of the program, exposed by the GNU standard.

This variable is exposed by the GNU standard, and is used to get the program name without relying on argv[0].

Note

This variable depends on GNU extensions, and is not portable.