All Questions

The conditional ? : operator in Java is right-associative. So the expression a<b ? c<d ? 1 : 2 : 3 ; is evaluated as a<b ? (c<d ? 1 : 2) : 3 ; Does this mean that the expression (c<d ?...

I've been struggling to understand why this returns 252448 instead of 251248. <?php $a = 4; echo ++$a * $a++ . $a += $a . $a *= 4; ?> My thinking is: ++$a * $a++ gives 25 (5*5), after that we ...

In C and C++, the expression some_num & 0xABCD == 5 will effectively evaluate as some_num & (0xABCD == 5). This is unlike all of the standard arithmetic operators, as they have higher ...

This code doesn't compile. It seems like the compiler (VS) is interpreting the expression as: (std::cout << ul1) & (ul2 << std::endl) #include <iostream> int main() { ...

I am a PowerShell novice. Suppose that I wish to call Get-Service -Name winrm, netlogon Due to parameter binding, this will be parsed as if we typed @("winrm", "netlogon") rather ...

I encountered with this problem while reading about Precedence climbing and Pratt parsing. This may be duplicate with this QA but that doesn't say much about Precedence climbing and Pratt parsing. The ...

I checked python operator precedence (This one grammar is more detailed and more appropriate for the actual Python implementation) Operators in the same box group left to right (except for ...

Why am I getting the output as 15 and not 10 for the following code? class Main { public static void main(String[] ARGS){ int x = 10; x += (x=5); System.out.println(x); ...

I have just started learning about pointers in C and was using a pointer p to iterate through the elements of an array. My goal was to increment every element by one, but after applying the increment ...

Python yields different answers >>> 0 < 0 == 0 False >>> (0 < 0) == 0 True >>> 0 < (0 == 0) True is this a bug? Python 3.11.10 (main, Sep 7 2024, 18:35:41) [GCC ...

My understanding is that the order of operations happens left to right in c, unless there's an operation that takes precedent (like multiplication happens before addition). int i = 3 * 2 + 4; //i == ...

I have a specific example in mind. x = a +++ b; This is evaluated as a++ not ++b. But I don't understand if this is due to order of precedence of postfix being higher than prefix, or due to order of ...

I was searching in the python documentation in order to get the 'Precedence table' of the operators in python, here it is (at least for python 3.12.7), Section 6.17: https://docs.python.org/3.12/...

I have these two code snippets that are acting differently: int i=2,j=3; if (j*=i == 2){ printf("yes, i= %d, j= %d",i,j); } else { printf("no, i= %d, j= %d",i,j); } int i=...

I'm trying to understand why this expression: $x = false && print 'printed' || true; results in $x being false instead of true. I know that && has higher precedence than ||, but I'm ...