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How do I check if a C++ std::string starts with a certain string, and convert a substring to an int?
...dy using Boost, you can do it with boost string algorithms + boost lexical cast:
#include <boost/algorithm/string/predicate.hpp>
#include <boost/lexical_cast.hpp>
try {
if (boost::starts_with(argv[1], "--foo="))
foo_value = boost::lexical_cast<int>(argv[1]+6);
} c...
How to capture a list of specific type with mockito
...t to a method requiring a Class<ArrayList<SomeType>>.
You can cast the object to the right type:
Class<ArrayList<SomeType>> listClass =
(Class<ArrayList<SomeType>>)(Class)ArrayList.class;
ArgumentCaptor<ArrayList<SomeType>> argument = A...
ThreadStart with parameters
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+1: Even though the currently selected answer is absolutely correct, this one by JaredPar is the better one. It simply is the best solution for most practical cases.
– galaktor
Oct 10 '09 at 10:27
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Why is it Valid to Concatenate Null Strings but not to Call “null.ToString()”?
...n? var wtf = ((String)null).ToString(); I'm working in Java recently where casting null's is possible, has been a while since I worked with C#.
– Jochem
May 30 '12 at 13:56
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How to convert an object to a byte array in C#
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@Smith: You can cast the enum to int (or if you have specified any other type as storage for the enum) and write it. When you read it you can cast it to the enum type.
– Guffa
May 3 '15 at 21:40
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How can I convert JSON to a HashMap using Gson?
I'm requesting data from a server which returns data in the JSON format. Casting a HashMap into JSON when making the request wasn't hard at all but the other way seems to be a little tricky. The JSON response looks like this:
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Do I really have a car in my garage? [duplicate]
...rYears on a Vehicle without caring about the implementation.
Usually, downcasting is a sign of a flawed design: do not store your vehicles all together if you need to differenciate their actual type.
Note: of course the design here can be easily improved. It is just an example to demonstrate the p...
TypeScript: problems with type system
...2d") will return with the type CanvasRenderingContext2D. You don't need to cast it explicitly.
– Markus Jarderot
Jun 13 '16 at 5:55
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When is assembly faster than C?
...2 bits: MSVC doesn't always do a good job when multiplying 32-bit integers cast to 64, so intrinsics helped a lot.
C doesn't have a full-multiplication operator (2N-bit result from N-bit inputs). The usual way to express it in C is to cast the inputs to the wider type and hope the compiler rec...
How to remove all leading zeroes in a string
... (int) "00009384783473" (random number) and my result was 2147483647. If I cast it as a float however, it seems to work ok. Strange
– JamesHalsall
Feb 23 '11 at 23:37
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