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How do I URL encode a string
...dCharacters:NSCharacterSet.URLQueryAllowedCharacterSet];
To specifically convert '&', you'll need to remove it from the url query set or use a different set, as '&' is allowed in a URL query:
NSMutableCharacterSet *chars = NSCharacterSet.URLQueryAllowedCharacterSet.mutableCopy;
[chars rem...
Do I cast the result of malloc?
...n value of malloc. The pointer to void returned by malloc is automagically converted to the correct type. However, if you want your code to compile with a C++ compiler, a cast is needed. A preferred alternative among the community is to use the following:
int *sieve = malloc(sizeof *sieve * length)...
How do function pointers in C work?
...also valid since the standard says that a function name in this context is converted to the address of the function.
– hlovdal
May 9 '09 at 14:39
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Max or Default?
...e "Select CType(y.MyCounter, Integer?)". I have to do an original check to convert Nothing to 0 for my purposes, but I like getting the results without an exception.
– gfrizzle
Dec 5 '08 at 13:51
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Passing a single item as IEnumerable
...nsion method to SingleItemAsEnumerable, everything started to work. Cannot convert IEnumerable<Dictionary<CheckBox,System.Tuple<int,int>>.KeyCollection>' to 'IEnumerable<CheckBox>'. An explicit conversion exists (are you missing a cast?) I can live with a hack for a while, b...
Split List into Sublists with LINQ
... Dividing by three has the effect of grouping them into groups of 3. Then convert each group to a list and the IEnumerable of List to a List of Lists
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Is there a NumPy function to return the first index of something in an array?
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You can also convert a NumPy array to list in the air and get its index. For example,
l = [1,2,3,4,5] # Python list
a = numpy.array(l) # NumPy array
i = a.tolist().index(2) # i will return index of 2
print i
It will print 1.
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What is a stack trace, and how can I use it to debug my application errors?
...t: [com.example.myproject.MyEntity]
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:96)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
at org.hibernate.id.insert.AbstractSelectingDelegate.performInsert(AbstractSelectingDele...
Struct like objects in Java
...LATIVE math errors, as changes to individual components of polar coord are converted back to (x, y).
– ToolmakerSteve
Jun 17 '14 at 22:29
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How to easily map c++ enums to strings
...s in some library header files that I'm using, and I want to have a way of converting enum values to user strings - and vice-versa.
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