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The assert macro implements runtime assertion. If the expression within it is false, the macro will print a message to stderr and call abort(), defined in stdlib.h.The message includes the source filename and the source line number from the macros __FILE__ and __LINE__, respectively. [2]
In C++, both assert.h and cassert headers provide the assert macro. The danger of assertions is that they may cause side effects either by changing memory data or by changing thread timing. Assertions should be implemented carefully so they cause no side effects on program code.
C++26 is the informal name for the version of the International Organization for Standardization ... User-generated static_assert messages; Placeholder variables with ...
C++11 is a version of a joint technical standard, ... static_assert (constant-expression, error-message); Here are some examples of how static_assert can be used:
C++17 is a version of the ISO/IEC 14882 standard for the C++ programming language. ... Making the text message for static_assert optional [5] Allow typename ...
assert.h, a header file in the standard library of the C programming language; Assertion definition language, a specification language providing a formal grammar to specify behaviour and interfaces for computer software
A unit test is code that is written to execute a specific function in the code to be tested and usually targets a small unit of code, such a single method or class. Using a combination of assert statements and other test statements, programmers can create suites of test cases in order to tell if a method or function is being executed properly. [5]
assert_equal (x, y); assert_not_equal (x, y); But this leads to an explosion in the number of assertion macros, as the above set is expanded to support comparisons different from simple equality. So "third generation" unit test frameworks use a library such as Hamcrest to support an 'assert_that' operator that can be combined with 'matcher ...