In C, assertions are implemented with the standard assert macro. The argument to assert must be true when the macro is executed, otherwise the program aborts and prints an error message. For example, the assertion
Oct 18, 2017 · All their properties have the exactly same content, however the Assert.Equal (or Assert.AreEqual if you are using NUnit) will simply not state that they are equal. An example of that would be the assert() is implemented as a macro; if the expression tested has side-effects, program behavior will be different depending on whether NDEBUG is defined. This may create Heisenbugs which go away when debugging is turned on. See Also abort(3), assert_perror(3), exit(3) Referenced By al_assert(3), expackf(3), register_assert_handler(3), trace(3) Microsoft Assert throws exceptions by default whenever an assertion fails. You can however set Assertions.Assert._raiseExceptions to false and Unity then logs a message using LogType.Assert instead. If a debugger is attached to the project (System.Diagnostics.Debugger.IsAttached is true), AssertionException will be thrown in order to pause the excecution
The assert.h header file of the C Standard Library provides a macro called assert which can be used to verify assumptions made by the program and print a diagnostic message if this assumption is false. The defined macro assert refers to another macro NDEBUG which is not a part of .
assert will terminate the program (usually with a message quoting the assert statement) if its argument turns out to be false. It's commonly used during debugging to make the program fail more obviously if an unexpected condition occurs.
assert の説明では、「assert は通常のエラーチェックに使うものではないことに注意しましょう」と書きました。 では、いつ assert を使えばよいでしょうか？ ここでは assert を使うべきではない場合と、使ったほうがよい場合について書いてみたいと思います。
void assert (scalar expression);. With assert you can test your programm for logical errors. The assert macro will insert diagnostics into programs . When executed, if expression (which is a scalar type you have) is false (ie, compares equal to 0), assert (), provide information about the particular call that failed to stderr and abort Usage You can test a predicate name defined using #assert in a #if expression, for example: #if #name(token-sequence) This has the value 1 if a #assert of the name name with the token-sequence token-sequence has appeared, and 0 otherwise. A predicate can have multiple values. That is, subsequent assertions do not override preceding assertions. TEST_ASSERT_EQUAL_UINT(expected, actual) TEST_ASSERT_EQUAL_UINT8(expected, actual) TEST_ASSERT_EQUAL_UINT16(expected, actual) TEST_ASSERT_EQUAL_UINT32(expected, actual) TEST_ASSERT_EQUAL_UINT64(expected, actual) Compare two integers for equality and display errors as unsigned integers. Like INT, there are variants for different sizes also.