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Convert a byte array to integer in Java and vice versa
...default
short num = wrapped.getShort(); // 1
ByteBuffer dbuf = ByteBuffer.allocate(2);
dbuf.putShort(num);
byte[] bytes = dbuf.array(); // { 0, 1 }
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Difference between python3 and python3m executables
... will
also contribute to the file name:
--with-pydebug (flag: d)
--with-pymalloc (flag: m)
--with-wide-unicode (flag: u)
via PEP 3149.
Regarding the m flag specifically, this is what Pymalloc is:
Pymalloc, a specialized object allocator written by Vladimir
Marangozov, was a feature added to Python...
Get nth character of a string in Swift programming language
...Int, see the documentation comment for discussion
– C0D3
Oct 14 '18 at 15:14
2
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MISCONF Redis is configured to save RDB snapshots
... linux machines) but a lot of the times BGAVE fails because the fork can't allocate memory. Many times the fork fails to allocate memory (although the machine has enough RAM available) because of a conflicting optimization by the OS.
As can be read from Redis FAQ:
Redis background saving schema rel...
How to convert floats to human-readable fractions?
... Implementation and algorithm notes at hg.python.org/cpython/file/822c7c0d27d1/Lib/fractions.py#l211
– piro
Mar 28 '11 at 10:44
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When should I use mmap for file access?
...programs; program A which reads in a 1MB file into a buffer creating with malloc, and program B which mmaps the 1MB file into memory. If the operating system has to swap part of A's memory out, it must write the contents of the buffer to swap before it can reuse the memory. In B's case any unmodif...
How to convert an NSTimeInterval (seconds) into minutes
...Calendar currentCalendar];
// Create the NSDates
NSDate *date1 = [[NSDate alloc] init];
NSDate *date2 = [[NSDate alloc] initWithTimeInterval:theTimeInterval sinceDate:date1];
// Get conversion to months, days, hours, minutes
unsigned int unitFlags = NSHourCalendarUnit | NSMinuteCalendarUnit | NSD...
Passing a 2D array to a C++ function
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What about passing dynamically allocated arrays to functions in C++? In C11 standard it can be done for statically and dynamically allocated arrays like that fn(int col,int row, int array[col][row]): stackoverflow.com/questions/16004668/… I have made the...
Undefined reference to static class member
...me figuring out that if the class definition is in a header file, then the allocation of the static variable should be in the implementation file, not the header.
– shanet
Jul 14 '12 at 3:06
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Preserve line endings
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If file contains both \n (0x0A) and \r\n (0x0D 0x0A) - this proposed solution (of always re-injecting the \r) breaks it.
– Vlad
Sep 18 '15 at 13:23
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