96 questions
0
votes
1
answer
705
views
I do not understand how {int a=10; a+=++a-5/3+6*a; System.out.print(a);} outputs 86
I do not understand how
{
int a = 10;
a += ++a-5/3+6*a;
System.out.print(a);
}
outputs 86
I know that shorthand notation has lower precedence than any of the operator used here so my ...
- 11
0
votes
0
answers
53
views
How does printf() execute its arguments with prefix and postfix unary operators?
I wrote a simple code for printf in C with unary prefix operator as the following:
#include <stdio.h>
int main() {
int i=5;
printf("%d %d %d",++i,i,i+1);
return 0;
}
And ...
- 1
0
votes
1
answer
258
views
Is it okay to use python operators for tensorflow tensors?
TL;DR
Is (a and b) equivalent to tf.logical_and(a, b) in terms of optimization and performance? (a and b are tensorflow tensors)
Details:
I use python with tensorflow. My first priority is to make the ...
- 6,680
0
votes
2
answers
105
views
Renaming multiple subdirectories with the name of parent directory as prefix
I have multiple directories 1111, 2222, 3333, 4444 and inside each directory is subdirectory named as for example _apple. I want to add the parent folder name as prefix to the sub directory.
What I ...
2
votes
1
answer
81
views
JavaScript Operator Precedence, Assignment, and Increment?
In JavaScript (JS), ++ has higher precedence than += or =. In trying to better understand operator execution order in JS, I'm hoping to see why the following code snippet results in 30 being printed?
...
- 455
0
votes
3
answers
87
views
StackOverFlow in Postfix Decrement in JAVA
This works fine because we are using the prefix decrement operator in the recursive call !
public static void main(String[] args) {
doubt1(5);
}
Prefix Decrement:
static void doubt(int num)
{
...
- 57
-1
votes
1
answer
52
views
Prefix and postfix operator
#include <stdio.h>
int main()
{
int x=5, y;
y=x+++x;
printf("%d", x);
printf("%d", y);
}
What I found is that postfix increment has higher precedence than ...
0
votes
0
answers
20
views
Precedency of Postfix and prefix operator in C [duplicate]
I am finding difficulty to understand how precedency works in the following case. Can anyone explain why the answer is different in below two printf functions?
int main()
{
int a=10,b=20,c;
c=...
1
vote
1
answer
165
views
precedence operator in java 8 - postfix operator first
Following the precedence operator in java 8 it is clear that the postfix operator (expr++ expr--) has a higher precedence that the unary operator, pre-unary operator (++expr --expr).
However when ...
- 13
2
votes
2
answers
157
views
c++ expression value (operator precedence)
The following expression :-
int main()
{
int x=2, y=9;
cout << ( 1 ? ++x, ++y : --x, --y);
}
gives the following output:-
9
As per my understanding, it should return ++y which should ...
- 87
-3
votes
3
answers
112
views
Different and odd results when using prefix and postfix operators in function arguments [duplicate]
Code:
#include <stdio.h>
int main()
{
int i = 3;
printf("%d %d %d %d %d\n",i = 7,--i,i = 18, i+5, i = 0);
printf("%d %d %d %d %d\n",i = 7,i--,i = 18, i+5, i = 0);...
0
votes
1
answer
111
views
Prefix operators are not working as expected in C [duplicate]
#include <stdio.h>
int main()
{
int a = 1;
int b = 1;
int c = a || --b;
int d = a-- && --b;
printf("a=%d, b= %d, c= %d, d= %d",a,b,c,d);
return 0;
}
In ...
- 51
1
vote
1
answer
860
views
Prefix notation string calculator Javascript problem
I'm making a calculator for a prefix notation string and it has covered all the normal tests that I've added to it. But I've come across one that it doesn't seem to be getting the right answer for and ...
- 400
-2
votes
3
answers
125
views
Pre and Postfix Increment
a = 1;
int a2 = a++;
System.out.println("----------Test 3 ----------");
System.out.println("The value of a is " + a);
System.out.println("The value of a2 is " + a2);
...
- 87
1
vote
1
answer
204
views
Using postfix/prefix increment operators in compound literals in C99
There is an example borrowed from CARM (C A Reference Manual, Samuel P. Harbison III, Guy L. Steele Jr., 2002, Prentice Hall), page 218-219.
I write all of three code-chunk in one source:
#include <...
- 25