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Is the “struct hack” technically undefined behavior?
...sed as an array. It's passed to strcpy, in which case it decays to a plain char *, which happens to point to an object which can legally be interpreted as char [100]; inside the allocated object.
– R.. GitHub STOP HELPING ICE
Sep 14 '10 at 23:34
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How to assign an exec result to a sql variable?
...esultForPos INT
EXEC @ResultForPos = storedprocedureName 'InputParameter'
SELECT @ResultForPos
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List columns with indexes in PostgreSQL
...constraint uk_test3ab unique (a, b));
List indexes and columns indexed:
select
t.relname as table_name,
i.relname as index_name,
a.attname as column_name
from
pg_class t,
pg_class i,
pg_index ix,
pg_attribute a
where
t.oid = ix.indrelid
and i.oid = ix.indexreli...
How do I count the number of occurrences of a char in a String?
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Guava equivalent: int count = CharMatcher.is('.').countIn("a.b.c.d"); ...As answered by dogbane in a duplicate question.
– Jonik
Aug 12 '13 at 17:00
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Way to get all alphabetic chars in an array in PHP?
Is there a way to get all alphabetic chars (A-Z) in an array in PHP so I can loop through them and display them?
14 Answers...
How to keep one variable constant with other one changing with row in excel
...out that you can toggle relative addressing for a formula in the currently selected cells with these keyboard shortcuts:
Windows: f4
Mac: CommandT
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Python, remove all non-alphabet chars from string
... MapReduce word count program. Problem is that there are many non-alphabet chars strewn about in the data, I have found this post Stripping everything but alphanumeric chars from a string in Python which shows a nice solution using regex, but I am not sure how to implement it
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Check if a string contains one of 10 characters
I'm using C# and I want to check if a string contains one of ten characters, *, &, # etc etc.
6 Answers
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Best practices/performance: mixing StringBuilder.append with String.concat
...end(sN).toString();
concat()
String s = s1.concat(s2);
String creates char[] array that can fit both s1 and s2. Copies s1 and s2 contents to this new array. Actually requires less work then + operator.
StringBuilder.append()
Maintains an internal char[] array that grows when needed. No extra ...
If strings are immutable in .NET, then why does Substring take O(n) time?
... typically use "substring" to extract a short string -- say, ten or twenty characters -- out of a somewhat longer string -- maybe a couple hundred characters. You have a line of text in a comma-separated file and you want to extract the third field, which is a last name. The line will be maybe a cou...