Hottest Questions This Month

84

votes

11

answers

8k

views

How can I avoid “for” loops with an “if” condition inside them with C++?

c++ c++11 c++14

answered Jul 25 at 14:27 mathreadler 224

139

votes

5

answers

4k

views

When should <script> tags be visible and why can they?

html css script-tag

answered Jul 7 at 22:05 Travis J 48.4k

88

votes

7

answers

7k

views

Difference between forward slash (/) and backslash (\) in file path

filepath backslash slash

modified Jul 26 at 19:00 Chirag64 2,169

56

votes

10

answers

4k

views

Is there a shorthand way to return values that might be null?

c# null-coalescing-operator null-coalescing

modified Jul 14 at 7:11 Roman Reiner 718

80

votes

9

answers

4k

views

What is happening in this JavaScript snippet?

javascript

modified 1 hour ago Boann 26.2k

88

votes

8

answers

9k

views

(A + B + C) ≠ (A + C + B) and compiler reordering

c++ c compiler-construction integer-overflow

answered Jul 26 at 5:20 Rahul Tripathi 98.3k

67

votes

5

answers

3k

views

How do I reliably split a string in Python?

python string python-3.x split

modified Jul 3 at 7:37 eugene y 54.7k

44

votes

9

answers

4k

views

Why does printf(“%f”,0); give undefined behavior?

c++ c printf implicit-conversion undefined-behavior

answered 2 days ago wyrm 78

82

votes

4

answers

4k

views

Why does everybody typedef over standard C types?

c++ c stdint

modified 11 hours ago stackptr 4,535

59

votes

8

answers

4k

views

Why can arrays not be trimmed?

c# arrays memory-management

modified Jul 23 at 22:48 Luis Perez 10.6k

101

votes

1

answer

3k

views

Why “use strict” improves performance 10x in this example?

javascript performance

modified Jul 16 at 13:33 JLRishe 50k

43

votes

7

answers

4k

views

Is it bad to declare a C-style string without const? If so, why?

c++ c c-strings

modified Jul 26 at 14:30 TylerH 10.3k

66

votes

2

answers

6k

views

Why does this delay-loop start to run faster after several iterations with no sleep?

c++ linux performance benchmarking

modified Jul 15 at 1:47 pavan kumar 1

82

votes

3

answers

3k

views

Is the definition of “volatile” this volatile, or is GCC having some standard compliancy problems?

c++ c gcc standards

modified Jul 8 at 11:57 zwol 65.3k

20

votes

8

answers

2k

views

How can I add an extension method to many classes?

c# reflection

answered Jul 20 at 11:02 Tsahi Asher 377

72

votes

1

answer

4k

views

Why define \0 as the first element of a char array in C?

c arrays

modified Jul 12 at 19:30 PC Luddite 3,688

48

votes

4

answers

3k

views

What does {{{0}}} on string.Format do?

c# lazy-evaluation

modified Jul 20 at 6:39 Mafii 2,519

35

votes

5

answers

3k

views

Problems installing Dot Net Core 1.0.0 VS 2015 Tools Preview 2

asp.net core

modified 14 hours ago Ben Pretorius 1,796

79

votes

1

answer

5k

views

Is there special significance to 16331239353195370.0?

python numpy numerical-methods

modified Jul 14 at 18:18 Tim Peters 25.5k

29

votes

8

answers

2k

views

Struct Reordering by compiler [closed]

c++ c struct memory-alignment

answered Jul 7 at 17:46 supercat 41.2k

67

votes

2

answers

1k

views

Why does std::transform and similar cast the 'for' loop increment to (void)?

c++

answered Jul 14 at 14:23 Abyx 6,331

47

votes

3

answers

4k

views

Homebrew: Error: update-report should not be called directly

homebrew

modified Jul 20 at 20:13 aboutaaron 904

37

votes

3

answers

3k

views

Is there any legitimate use of list[True], list[False] in Python?

python boolean

modified Jul 1 at 9:07 Bakuriu 42.8k

22

votes

8

answers

2k

views

How to know which variable is the culprit in try block?

java exception exception-handling

answered 13 hours ago Branko Radovanović 1

23

votes

8

answers

2k

views

Why should I ever overload methods?

java function oop function-overloading

modified Jul 24 at 7:22 Devashish 342

51

votes

4

answers

3k

views

Why is `\s+` so much faster than `\s\s*` in this Perl regex?

regex perl regex-greedy

modified Jul 22 at 7:46 zdim 5,650

26

votes

6

answers

1k

views

Create a list of tuples with adjacent list elements if a condition is true

python list python-3.x tuples list-comprehension

answered Jul 8 at 2:24 Jiacai Liu 782

40

votes

3

answers

2k

views

Catching exceptions with “catch, when”

c# exception-handling

modified Jul 22 at 14:56 Eli Arbel 9,499

22

votes

8

answers

2k

views

Is there a way to return an abstraction from a function without using new (for performance reasons)

c++ oop

modified yesterday Peter 14.7k

24

votes

4

answers

3k

views

Is the new C++ return syntax limited?

c++ c++11 return

answered Jul 26 at 8:28 Stephen Rogers 11

24

votes

6

answers

2k

views

When is 'this' captured in a lambda?

c++ c++11 lambda

modified Jul 14 at 6:48 Simon Kraemer 2,875

49

votes

3

answers

1k

views

Lambdas from a list comprehension are returning a lambda when called

python lambda

modified Jul 14 at 16:00 jpmc26 8,348

37

votes

3

answers

3k

views

Why can nested child classes access private members of their parent class, but grandchildren cannot?

java visibility inner-classes

modified 2 days ago Martin Schröder 1,624

17

votes

4

answers

837

views

Unpack a Python tuple from left to right?

python python-3.x tuples iterable-unpacking

modified Jul 8 at 23:12 Aguy 1,852

23

votes

7

answers

1k

views

What does getting address of array variable mean?

c pointers

modified Jul 6 at 16:25 Mark Lakata 9,528

18

votes

7

answers

1k

views

Select specific elements from a vector

c++ c++11 stdvector

modified Jul 14 at 22:25 Mutantoe 438

28

votes

4

answers

2k

views

Why class size increases when int64_t changes to int32_t

c++ memory-alignment bit-fields

modified Jul 13 at 8:02 David Conrad 5,723

20

votes

5

answers

2k

views

In C++11 and beyond does std::string::operator[] do bounds checking?

c++ string c++11 c++14 arrayaccess

modified Jul 22 at 18:05 rj99999 79

31

votes

3

answers

1k

views

Deduction of the function

c++ templates c++11 type-deduction

modified Jul 9 at 20:15 Serge Roussak 553

21

votes

3

answers

1k

views

Converting bool expression to char in c#

c# clr

modified Jul 11 at 5:19 user3185569 11.3k

31

votes

3

answers

2k

views

Why and how are Python functions hashable?

python hash

modified Jul 23 at 21:26 Will 10.9k

25

votes

3

answers

1k

views

Two variables in Python have same id, but not lists or tuples - why? [closed]

python python-3.x tuples python-internals

modified Jul 12 at 5:58 Kasramvd 51.1k

12

votes

6

answers

2k

views

Nested FOR loops: readability & performance [closed]

c# performance loops for-loop

answered Jul 11 at 19:40 Brian Risk 501

37

votes

3

answers

2k

views

Channel is not opened Errors in automatic merge on Teamcity (git)

git teamcity bitbucket teamcity-9.0

modified Jul 13 at 15:31 namero999 1,807

19

votes

5

answers

1k

views

rounding errors in Python floor division

python python-2.7 python-3.x floating-point rounding

modified 2 days ago 0x539 623

32

votes

2

answers

2k

views

Nicer syntax for setting default argument value to default constructor

c++ c++11 optional-parameters default-constructor

modified Jul 1 at 13:47 bolov 11.7k

29

votes

6

answers

2k

views

Without JavaScript, can I show a different text when a longer one won't fit?

html css html5 css3

modified Jul 15 at 18:50 kcroake88 16

17

votes

6

answers

723

views

Why am I getting duplicate keys in Java HashMap? [closed]

java hashmap equals hashcode

modified Jul 20 at 16:28 dmoon1221 102

28

votes

3

answers

1k

views

Max recursion is not exactly what sys.getrecursionlimit() claims. How come?

python recursion

modified Jul 8 at 18:14 syntonym 2,559

26

votes

3

answers

1k

views

C - Incompatible Pointer Type

c pointers struct initialization incompatibletypeerror

modified Jul 16 at 21:37 2501 15.5k

17

votes

4

answers

1k

views

Where are all the static members stored? [on hold]

c# .net static stack heap

answered 2 days ago Lakhtey 215

14

votes

5

answers

2k

views

What would the Big O be of a nested for loop with an Any() inside it?

c# algorithm big-o

modified Jul 15 at 18:08 trincot 30.5k

43

votes

1

answer

2k

views

Why does '() is ()' return True when '[] is []' and '{} is {}' return False?

python python-3.x tuples identity python-internals

modified Jul 14 at 21:15 Jim 14.2k

19

votes

7

answers

800

views

C++ parameter pack, constrained to have instances of a single type?

c++ templates c++11 variadic-templates visitor

answered yesterday skypjack 10.4k

8

votes

8

answers

2k

views

Do we use else with unless statement?

ruby-on-rails ruby language

modified yesterday Groo 25.8k

12

votes

9

answers

996

views

Which container should I use for random access, cheap addition and removal (without de/allocation), with a known maximum size?

c++ stl containers

answered Jul 7 at 6:30 Matthieu M. 142k

20

votes

4

answers

705

views

Why can function pointers be `constexpr`?

c++ function-pointers constexpr

modified Jul 16 at 20:36 hyde 21.4k

32

votes

2

answers

2k

views

Why does C# require parentheses when using nullables in an expression?

c# nullable

modified Jul 5 at 19:09 ErikE 25k

9

votes

3

answers

1k

views

Genymotion VirtualBox error

android virtualbox genymotion

answered Jul 13 at 15:39 Will 1

12

votes

8

answers

856

views

Change the color of div when user clicks over it

javascript jquery html css css3

answered Jul 15 at 1:57 Luis Perez 10.6k

23

votes

4

answers

1k

views

How to generate nested loops at compile time

c++ templates c++11 metaprogramming c++14

answered Jul 15 at 14:20 Cheers and hth. - Alf 97k

29

votes

2

answers

1k

views

Why is using str.strip() so much faster than using str.strip(' ')?

python string performance python-3.x python-internals

modified Jul 11 at 19:44 Jim 14.2k

22

votes

3

answers

1k

views

Android Failed to find this app in the PackageManager io.crash.air

android fabric crashlytics

modified Jul 20 at 7:24 Niranjan 610

33

votes

3

answers

538

views

Overriding methods in Swift extensions

swift swift2 swift-extensions

modified Jul 14 at 5:48 Sebastian Hojas 2,640

19

votes

4

answers

584

views

What is the purpose of casting into “object” type?

c# .net string equality string-interning

modified Jul 9 at 17:49 Legends 1,609

19

votes

3

answers

767

views

Is there a way to determine if a method has been overridden in a Java class

java oop overriding method-overriding

modified Jul 25 at 7:39 Aditya W 191

13

votes

6

answers

654

views

How to code a “retry” logic (with only 1 iteration) in F# without mutable vars?

f# refactoring

modified yesterday TheQuickBrownFox 1,221

13

votes

5

answers

1k

views

Why comparing two strings as object causes unexpected result

c# inheritance equals equality

modified Jul 13 at 15:27 Jeppe Stig Nielsen 30.2k

17

votes

4

answers

885

views

Advantages of using user-defined literal for strings instead of string literal

c++ string c++14

modified yesterday Nicol Bolas 189k

12

votes

5

answers

1k

views

Empty setter vs no setter in properties

c# .net properties

modified Jul 1 at 7:11 Dmitry Bychenko 48.9k

12

votes

3

answers

517

views

C++11 Change `auto` Lambda to a different Lambda?

c++ c++11 lambda auto

modified yesterday Archie Gertsman 499

15

votes

2

answers

700

views

How to do floating of labels in CSS

html css

modified Jul 12 at 0:06 claudios 1,350

13

votes

6

answers

815

views

Multiple underline colors in one anchor

html css

modified Jul 21 at 2:41 Pugazh 4,427

5

votes

5

answers

416

views

How to dynamically create an array of 10 to 100 with gap of 10 between values?

php arrays

modified 2 days ago Shadow Wizard 48.2k

17

votes

3

answers

673

views

static property in c# 6

c# c#-6.0

modified Jul 4 at 0:29 Matti Virkkunen 42.6k

16

votes

2

answers

861

views

Exception during list comprehension. Are intermediate results kept anywhere?

python list-comprehension

modified Jul 7 at 16:21 Aguy 1,852

18

votes

4

answers

803

views

Why does upcasting IDictionary<TKey, TValue> to IEnumerable<object> fail?

c# .net casting c#-6.0 .net-4.6

modified Jul 18 at 15:11 Peter Mortensen 10k

71

votes

2

answers

7k

views

Join tiles in Corona SDK into one word for a Breakout game grid?

matrix lua corona breakout

modified Jul 21 at 21:53 cincodenada 1,902

20

votes

4

answers

704

views

What are the type conversion rules for parameters and return values of lambdas?

c++ c++11 lambda type-conversion

modified Jul 12 at 12:30 ecatmur 89.4k

14

votes

6

answers

695

views

How to center a child element in CSS, even if it is larger than the parent?

html css css3

modified Jul 12 at 17:03 Billy Mailman 214

21

votes

3

answers

1k

views

The advantage cast pointer to void* when use new

c++ stl

modified Jul 5 at 1:41 Rakete1111 6,553

11

votes

5

answers

539

views

How to assign member variables temporarily?

python python-2.7 python-decorators python-descriptors

modified Jul 22 at 23:41 user2357112 72.3k

26

votes

2

answers

1k

views

A weird behavior of using-declaration

c++ c++11 name-lookup using-declaration private-inheritance

modified Jul 4 at 8:34 songyuanyao 28.2k

18

votes

4

answers

708

views

Why does string.split with a regular expression that contains a capturing group return an array that ends with an empty string?

javascript regex string split

answered Jul 8 at 18:04 GOTO 0 7,986

15

votes

3

answers

1k

views

What is the data type of a string literal in C++?

c++ string data-type-conversion

modified Jul 25 at 19:40 Ivan Starostin 2,582

25

votes

3

answers

812

views

What is the original type of interpolated string?

c# string type-inference method-overloading string-interpolation

modified 17 hours ago Jeppe Stig Nielsen 30.2k

10

votes

5

answers

445

views

Understanding this line: list_of_tuples = [(x,y) for x, y, label in data_one]

python numpy list-comprehension

modified Jul 8 at 8:22 Lee Netherton 8,017

13

votes

3

answers

716

views

Why doesn't the function printk() use a comma to separate parameters?

c linux linux-kernel

modified Jul 21 at 12:24 aalaap 1,247

17

votes

3

answers

917

views

How can I prevent bitwise OR combinations of enum values?

c# enums flags

modified Jul 22 at 16:34 Zac Crites 224

15

votes

2

answers

2k

views

Why can we allocate a 1 PB (10^15) array and get acces to the last element, but can't free it?

c linux malloc mmap virtual-address-space

modified 2 days ago Alex 2,091

23

votes

7

answers

490

views

Shared Transaction between different OracleDB Connections

java oracle junit transactions sql2o

modified Jul 21 at 17:25 Ducaz035 786

18

votes

8

answers

425

views

Is there an equivalent to the “alt” attribute for div elements?

javascript html css accessibility screen-readers

modified Jul 25 at 10:31 aardrian 1,645

20

votes

2

answers

533

views

Finding the American flag in a picture?

algorithm image-processing computer-vision

answered Jul 10 at 20:34 Jaxian 672

15

votes

2

answers

666

views

Can I use [[noreturn]] on non-void returning functions?

c++ c++11 return undefined-behavior noreturn

modified yesterday 101010 24.5k

15

votes

4

answers

783

views

Remove space between two trapezoids

html css

modified Jul 21 at 23:59 John Kugelman 168k

13

votes

5

answers

471

views

C++, does bool conversion always fall back to implicit conversion to void*?

c++ implicit-conversion void-pointers

answered Jul 22 at 21:42 peppe 10.3k

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