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Format output string, right alignment
...iliar with one of them, the new format seems easier to read. ".format" for string formatting certainly seems more intuitive than percentage/modulo. Right arrow for right alignment seems pretty intuitive too.
– Mark
May 28 '17 at 10:54
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Generating a random & unique 8 character string using MySQL
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This problem consists of two very different sub-problems:
the string must be seemingly random
the string must be unique
While randomness is quite easily achieved, the uniqueness without a retry loop is not. This brings us to concentrate on the uniqueness first. Non-random uniqueness c...
Split large string in n-size chunks in JavaScript
I would like to split a very large string (let's say, 10,000 characters) into N-size chunks.
22 Answers
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Replace all 0 values to NA
... "complete.obs". Typically, however, this is unsatisfactory as it leads to extra information loss.
2. Instead of running some sort of loop, in the solution I use df == 0 vectorization. df == 0 returns (try it) a matrix of the same size as df, with the entries TRUE and FALSE. Further, we are also al...
Concept of void pointer in C programming
...ith explicit metainformation, like the int b in your example or the format string in the printf family of functions.
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How do you count the number of occurrences of a certain substring in a SQL varchar?
... comes to mind is to do it indirectly by replacing the comma with an empty string and comparing the lengths
Declare @string varchar(1000)
Set @string = 'a,b,c,d'
select len(@string) - len(replace(@string, ',', ''))
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Is C++14 adding new keywords to C++?
...ch else namespace static_assert using
char enum new static_cast virtual
char16_t explicit noexcept struct void
char32_t export nullptr switch ...
Iterating each character in a string using Python
In C++, I can iterate over an std::string like this:
8 Answers
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Why is a round-trip conversion via a string not safe for a double?
...amp;number, &dTest);
if (dTest == value) {
gc.refRetVal = NumberToString(&number, 'G', DOUBLE_PRECISION, gc.numfmt);
goto lExit;
}
DoubleToNumber(value, 17, &number);
DoubleToNumber is pretty simple -- it just calls _ecvt, which is in the C runtime:
void DoubleToNumber(doubl...
C default arguments
... present depending on the required arguments, and printf(3) reads a format string that specifies how many arguments there will be. Both use varargs quite safely and effectively, and though you can certainly screw them up, printf() especially seems to be quite popular.
– Chris L...