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Understanding the Greater-Than-or-Equal-to-Assignment Operator (>=?) in C
In the context of a C library, a question arises regarding an operator denoted as ">?=". Speculation surrounds the purpose and functionality of this operator, as documentation appears scarce.
Decoding the Operator
The ">?=" operator, an extension specific to the g compiler, underwent removal in later versions (after GCC 4.2). Its functionality can be expressed as the assignment of the maximum value between its left-hand operand ("a") and its right-hand operand ("b") to "a". In essence, it executes the statement "a = max(a,b)".
Example:
<code class="cpp">int a = 5; int b = 10; a >?= b; // a is now 10, as it is the maximum value between a and b</code>
Similar Operator:
Alongside the ">?=" operator, a complementary operator exists, denoted as "=". It operates in a similar fashion but evaluates the minimum value between "a" and "b", assigning it to "a". This can be expressed as "a = min(a, b)".
Deprecation
As mentioned, the ">?=" operator has been deprecated in newer versions of GCC. It is no longer supported and should not be relied upon in code.
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