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How to find the JVM version from a program?
...lement of the runtime version
java.vm.name "OpenJDK 64-Bit Server VM" "Java HotSpot(TM) 64-Bit Server VM" "Java HotSpot(TM) 64-Bit Server VM" Java Virtual Machine implementation name
java.vm.vendor "Oracle Corporation" ...
Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C
...just don't look at me when they're not as fast :)
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Low Memory (32-bit int, 32-bit machine)(from here):
unsigned int
reverse(register unsigned int x)
{
x = (((x & 0xaaaaaaaa) >> 1) | ((x & 0x55555555) << 1));
x = (((x & 0xcccccccc) >> 2) | ((x & 0x3...
How can mixed data types (int, float, char, etc) be stored in an array?
...e is tagged pointer, which involves storing more information in the "free" bits of a pointer.
Depending on architectures you can use the low or high bits, but the safest and most portable way is using the unused low bits by taking the advantage of aligned memory. For example in 32-bit and 64-bit sys...
Is there a W3C valid way to disable autocomplete in a HTML form?
...1-transitional.dtd doctype, collecting a credit card number with the following HTML
17 Answers
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Compiling problems: cannot find crt1.o
...is you likely only have the gcc for your current architecture and that's 64bit. You need the 32bit support files. For that, you need to install them
sudo apt install gcc-multilib
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64 bit OS下int占几个字节？ - C/C++ - 清泛网 - 专注C/C++及内核技术
64 bit OS下int占几个字节？int固定4字节，不要受64 bit的混淆。int是由编程语言设计决定的，不受编译器的影响。__int64才是8位的。另外，指针是受编译器 OS影响的，3...int固定4字节，不要受64 bit的混淆。int是由编程语言设计决定的...
Why do stacks typically grow downwards?
...ection strategy story. Makes some sense that text segments are laid out growing upwards-- programmers of yore had somewhat more direct contact with dealing with the implications of that than the stack.Thanks paxdiablo. The pointer to the set of alternative forms of stack implementations is also supe...
How to run a makefile in Windows?
I have some demos that I downloaded and they come with a Makefile.win and a Makefile.sgi. How can I run these in Windows to compile the demos?
...
How can I open a cmd window in a specific location?
How can I open a cmd window in a specific location without having to navigate all the way to the directory I want?
40 Answe...
How do I find files with a path length greater than 260 characters in Windows?
I'm using a xcopy in an XP windows script to recursively copy a directory. I keep getting an 'Insufficient Memory' error, which I understand is because a file I'm trying to copy has too long a path. I can easily reduce the path length, but unfortunately I can't work out which files are violating t...