assert(3STDC)

NAME | SYNOPSIS | API RESTRICTIONS | DESCRIPTION | DIAGNOSTICS | ATTRIBUTES | SEE ALSO

NAME

assert, _assert, _stdc_assert- expression verification macro

SYNOPSIS

#include <assert.h>
assert expression

_assert expression

void _stdc_assert(const char * file, int line, const char * expression);

API RESTRICTIONS

The function or functions documented here may not be used safely in all application contexts with all APIs provided in the ChorusOS 5.0 product.

See API(5FEA) for details.

DESCRIPTION

The _assert(x) macro is defined as assert(x) . The assert macro tests the given expression and if it is false, calls _stdc_assert() . The _stdc_assert() function writes a diagnostic message to the error channel, and calls abort(3STDC) .

If the expression is true, the assert macro does nothing.

The assert macro may be rendered non-operational at compile time using the NDEBUG option.

DIAGNOSTICS

The following diagnostic message is written to the error channel if expression is false:

("assertion %s failed: file %s, line %d\
", expression, __FILE__, __LINE__)

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE	ATTRIBUTE VALUE
Interface Stability	Evolving

SEE ALSO

abort(3STDC)

NAME | SYNOPSIS | API RESTRICTIONS | DESCRIPTION | DIAGNOSTICS | ATTRIBUTES | SEE ALSO