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What tools are there for functional programming in C?
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FFCALL lets you build closures in C -- callback = alloc_callback(&function, data) returns a function pointer such that callback(arg1, ...) is equivalent to calling function(data, arg1, ...). You will have to handle garbage collection manually, though.
Relatedly, blocks...
Generating a random & unique 8 character string using MySQL
...9f2a7baf3 => eccbc87e
etc.
caveat: I have no idea how many you could allocate before a collision (but it would be a known and constant value).
edit: This is now an old answer, but I saw it again with time on my hands, so, from observation...
Chance of all numbers = 2.35%
Chance of all lette...
Converting bool to text in C++
...s which you might not care about, and create a dynamic string (with memory allocation) whereas the macro can yield a literal string, which avoids that. But on the flip side, the stringstream method can be used for a great many conversions between printable and internal representations. You can run ...
How do I use Java to read from a file that is actively being written to?
...fc = in.getChannel();
java.nio.ByteBuffer bb = java.nio.ByteBuffer.allocate(10);
while(fc.read(bb) >= 0) {
bb.flip();
while(bb.hasRemaining()) {
System.out.println((char)bb.get());
}
bb.clear();
}
Sy...
Elasticsearch query to return all records
...e the scan+scroll-requests. If you do use size=BIGNUMBER, note that Lucene allocates memory for scores for that number, so don't make it exceedingly large. :)
– Alex Brasetvik
Nov 18 '13 at 19:33
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Can a pointer to base point to an array of derived objects?
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You cannot index like that. You have allocated an array of Rectangles and stored a pointer to the first in shapes. When you do shapes[1] you're dereferencing (shapes + 1). This will not give you a pointer to the next Rectangle, but a pointer to what would be the...
How enumerate all classes with custom class attribute?
...s to readability and maintainability. I challenge the statement that they allocate the fewest objects and performance will be faster (especially without empirical proof); you've basically written the Select extension method, and the compiler will generate a state machine just as it would if you cal...
Can I write into the console in a unit test? If yes, why doesn't the console window open?
...y open a console window, using P/Invoke as sinni800 says. From reading the AllocConsole documentation, it appears that the function will reset stdin and stdout handles to point to the new console window. (I'm not 100% sure about that; it seems kind of wrong to me if I've already redirected stdout fo...
Will code in a Finally statement fire if I return a value in a Try block?
...t. Thus, the only place a CER should be relevant is for resources that are allocated outside of the process, e.g., unmanaged handles.
Typically, unmanaged code is wrapped by some managed class before being consumed by user code. The managed wrapper class will typically make use of a SafeHandle to w...
Edit and Continue: “Changes are not allowed when…”
...y match the original version is unchecked.
Check Enable Windows debug heap allocator (Native only) [VS Community 2017]
Are you using Microsoft Fakes? It inhibits Edit & Continue.
Kill all the *.vshost.exe instances by selecting End Process Tree in the Task Manager. VS will regenerate a correct i...