Re:My personal C coding style as of late 2023
by LegionMammal978 on Sunday October 08, 2023 @10:32PM
(#37816362)
>> I’ll cast away the const if needed.
> Undefined behavior[2]
How so? As the page you linked mentions, simply casting 'const T *' to regular 'T *' is well-defined; it's only modifying a const object through the pointer that's UB (C17 6.7.3/7).
> I don't believe assignments are sequence points and only the function call is.
Assigments within expressions don't create sequence points. However, the expression of an expression statement is a full expression (i.e., not a subexpression of another expression), and there is a sequence point between each pair of full expressions (C17 6.8/4). In other words, the semicolons create sequence points.
> Undefined behavior[2]
How so? As the page you linked mentions, simply casting 'const T *' to regular 'T *' is well-defined; it's only modifying a const object through the pointer that's UB (C17 6.7.3/7).
> I don't believe assignments are sequence points and only the function call is.
Assigments within expressions don't create sequence points. However, the expression of an expression statement is a full expression (i.e., not a subexpression of another expression), and there is a sequence point between each pair of full expressions (C17 6.8/4). In other words, the semicolons create sequence points.