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Why do I get the error “Unsafe code may only appear if compiling with /unsafe”?
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To use unsafe code blocks, the project has to be compiled with the /unsafe switch on.
Open the properties for the project, go to the Build tab and check the Allow unsafe code checkbox.
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Is there a difference between “throw” and “throw ex”?
...still hard to see if this problem comes from line 35 or line 37 in the try block.
If you use the third alternative, wrapping in an outer exception, you lose no information:
Handling a DivideByZeroException.
Your stack trace:
at Program.ThrowTest() in c:\somepath\Program.cs:line 48
at Program...
SQL Server - stop or break execution of a SQL script
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Is it possible to have multiple blocks within Begin..End? Meaning STATEMENT; GO; STATEMENT; GO; etc etc? I'm getting errors and I guess that might be the reason.
– Joel Peltonen
May 6 '14 at 12:48
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How much is the overhead of smart pointers compared to normal pointers in C++?
...nt overhead for creation because of it's memory allocation for the control block (which keeps the ref counter and a pointer list to all weak references). It has also a huge memory overhead because of this and the fact that std::shared_ptr is always a 2 pointer tuple (one to the object, one to the co...
Is there a “do … while” loop in Ruby?
...s the semantic of modifiers, that is:they are checked before executing the block, for example: puts k if !k.nil?. Here 'if' is a 'modifier':it is checked BEFORE,in order to determine whether executing the 'puts k' statement.That's not the case of while/until loops that(when used as modifiers of a be...
Simple Vim commands you wish you'd known earlier [closed]
... v
select row(s) SHIFT + v
select blocks (columns) CTRL + v
indent selected text >
unindent selected text <
list buffers :ls
open buffer :bN...
What is the meaning of the term arena in relation to memory?
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One popular use case is where each arena is only used to allocate memory blocks of one single, fixed size. In that case, you can write very efficient reclamation algorithms. Another use case is to have one arena per "task", and when you're done with the task, you can free the entire arena in one g...
How to debug heap corruption errors?
...r
quickly, without checking every
statement that accesses the memory
block, you can set the memory pointer
to an invalid value after freeing the
block:
#ifdef _DEBUG // detect the access to freed memory
#undef free
#define free(p) _free_dbg(p, _NORMAL_BLOCK); *(int*)&p = 0x666;
#endif...
How is CountDownLatch used in Java Multithreading?
...riers are for waiting for other threads. cyclicBarrier.await() goes into a blocking state.
– RDM
Nov 13 '17 at 13:02
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show 4 more comments
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Why aren't variable-length arrays part of the C++ standard?
... Also, the scope for alloca() is the entire function, not just the block of code containing the variable. So using it inside of a loop it will continuously increase the stack. A VLA does not have this problem.
– sashoalm
Jul 1 '16 at 11:49
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