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Why is reading lines from stdin much slower in C++ than Python?
...alse);
Normally, when an input stream is buffered, instead of reading one character at a time, the stream will be read in larger chunks. This reduces the number of system calls, which are typically relatively expensive. However, since the FILE* based stdio and iostreams often have separate implem...
Byte order mark screws up file reading in Java
...e doc link above. You can then use the detected ByteOrderMark to choose a Charset to decode the stream. (There's probably a more streamlined way to do this if you need all of this functionality - maybe the UnicodeReader in BalusC's answer?). Note that, in general, there's not a very good way to d...
How to print binary tree diagram?
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I was trying to replicate the "selected answer" technique. But I think this one of the best answers here. So Robust and concise.
– Vikrant Goel
Apr 27 '15 at 7:29
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Difference between float and decimal data type
...0,2), b float);
mysql> insert into numbers values (100, 100);
mysql> select @a := (a/3), @b := (b/3), @a * 3, @b * 3 from numbers \G
*************************** 1. row ***************************
@a := (a/3): 33.333333333
@b := (b/3): 33.333333333333
@a + @a + @a: 99.9999999990000000000000...
reference assignment is atomic so why is Interlocked.Exchange(ref Object, Object) needed?
...ces:
"Reads and writes of the following
data types are atomic: bool, char,
byte, sbyte, short, ushort, uint, int,
float, and reference types."
So, you can write to the volatile reference without risk of getting a corrupted value.
You should of course be careful with how you decide which...
Throwing exceptions from constructors
...attached has an outdated hyperlink. To fix it wants to change exactly one character, replacing "#faq-17.2" with "#faq-17.8" in the URL. However, Stackoverflow's software requires that an edit submitted by a low-reputation user like me change at least six characters. Pretty obviously, the broken l...
How to develop a soft keyboard for Android? [closed]
... is showing in setting option with built in keyboard, but in actual when i select my custom keyboard to replace inbuilt keyboard my app in crashing. Do you have any idea where i am going wrong?
– Aniket
Oct 10 '13 at 9:39
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Using awk to print all columns from the nth to the last
... You can also use "-b" to specify the position (from the Nth character onwards).
– Dakatine
Sep 10 '13 at 13:56
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delete vs delete[] operators in C++
... I wonder if using delete on a new[] array of primitive types like int or char (no constructor/destructor) necessarily leads to undefined behavior, too. It seems the array size isn't stored anywhere when using primitive types.
– thomiel
Jul 6 '14 at 11:16
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Convert string to List in one line?
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List<string> result = names.Split(new char[] { ',' }).ToList();
Or even cleaner by Dan's suggestion:
List<string> result = names.Split(',').ToList();
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