Subtracting one from the value of a variable, generally with the use of an decrement operator.
Subtracting one from the value of a variable, generally with the use of an decrement operator(--).
Questions tagged [decrement]
425 questions
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vote
1 answer
Auto Increment(+) and Decrement(-) button like time picker
Hello I'm trying to get an edit increment decrement, to no avail.
I see on Time/Date palette: Time picker, but i want only one box.
I'd like an edit like this:
Thank You!
Rafael França
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- 1
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1 answer
Substraction or decrement random access iterator pointing to begin
Consider following piece of code
void foo( bool forwad )
{
vector::iterator it, end_it;
int dir;
it = some_global_vector.begin() + some_position;
if( forward )
{
dir = 1;
it += 1;
end_it =…
BeginEnd
- 334
- 2
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1 answer
How do I concisely write x = x - 4 unless x is less than 0, in which case x = 0?
I am doing some pagination and can do @next_images_to_paginate += 4 without a problem.
But @previous_images_to_paginate -= 4 doesn't because I can get negative numbers.
I can't use absolute because I want -1, -2 and -3 to be 0.
Something…
Michael Durrant
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vote
1 answer
Increment or decrement array elements by 1
I need some help solving the following competitive programming question.
Given array A of size N .now you can make K operations where in each operation you can increase or decrease an element in array by 1. Now beauty of array is frequency of most…
vishal akula
- 11
- 3
1
vote
4 answers
Why does the following code print 8,5,2 instead of 7,4,1?
I just came across this C question with the following code:
int fun();
int main()
{
for (fun(); fun(); fun())
printf("%d\n", fun());
return 0;
}
int fun()
{
int static n = 10;
return n--;
}
I expected the for loop to evaluate…
bharath2438
- 59
- 4
1
vote
0 answers
Why does the decrementing operator in PHP work in this way?
The following code:
$arr = array(1, 2, 3, 4, 5);
$i = 5;
while($i >= 1){
var_dump($i);
var_dump($arr[--$i]);
}
has the following output:
int(5)
int(5)
int(4)
int(4)
int(3)
int(3)
int(2)
int(2)
int(1)
int(1)
but if we replace the two lines…
Sharanya Dutta
- 3,981
- 2
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- 27
1
vote
1 answer
JavaScript: Differences in using "--" vs "- 1" to decrement a for loop's arr.length
I'm curious as to why I get two different results when decrementing the arr.length with arr.length-- and arr.length - 1. I would have thought these would have functioned the same. For example:
const numbers = [10, 20, 40, 30, 50]
function…
Hezakai
- 35
- 4
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vote
1 answer
Is there a compiler attribute to decrement enumerator-list values/enumeration-constants (in C)?
When you declare a enum, the constant values of the enumerator-list automatically increment. E.g.
typedef enum{
TEST0 = 0,
TEST_X, // automatically will be 1
TEST_Y, // ...will be 2
...
}test_t;
Is there a way to make the enumeration constants…
EmbeddedAlex
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- 2
1
vote
2 answers
Increment and decrement same number TASM
Already made this code that increments the number that I type, but I'm having trouble with making it decrement the same number that I typed. I thought about moving the number from DL into BL back then DEC it and just show it again but it just gives…
noirangel110
- 11
- 1
1
vote
3 answers
Why do the values of x and y not decrement in this code?
I have been trying to figure out why the output of the code below is 2 2 but can't seem to figure out why. I get that the else statement is getting executed but from what I've read I can't understand why the first print doesn't get…
Generations01
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- 3
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vote
6 answers
Make this increment/decrement work with multiple inputs in jQuery
I am having a bit of trouble selecting an input. Basically, I need the button to increase or decrease the value of a single input contained in the same element.
Here's the HTML:
John Peden
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vote
0 answers
make increment and decrement with nfc_manager library flutter
I want to make e-wallet apps using MiFare classic 1K with flutter. also use nfc_manager library
I can change the access bit to 887787FF (it change the block of sector to value block that i know).
I wanna ask, what step to make increment and…
ilham
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vote
1 answer
Cumulative sum in the decreasing order in R
I have a data table below.
Idle_min <- c(1, 2, 3, 5, 6, 8)
Freq <- c(16, 11, 5, 7, 3, 1)
df <- data.frame(Idle_min, Freq)
I want to obtain the cumulative frequency and add it as a new column, but it should be in descending order. That means, the…
Niro Mal
- 127
- 7
1
vote
3 answers
How to increment/decrement variable value only once while in a loop?
I need to decrement var "left" by 1 and only once instead of having it go through a loop and decrement if conditions pass true. But conditions are valid only if they are in a loop. How would I do this?
let key = e.key.toLowerCase()
for (i = 0;…
eyyMinda
- 25
- 5
1
vote
1 answer
Is increment stackable? I.e x++++; or (x++)++;
When me and my friend were preparing for exam, my friend said that x+++; is the same as x+=3;
It is not true but is x++++; same as x+=1; or is (x++)++;? Could I generalize it? I.e. x++++++++++++++; or ((((((x++)++)++)++)++)++)++; is equivalent to…
JRBros
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