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Does Python SciPy need BLAS?
...
143
The SciPy webpage used to provide build and installation instructions, but the instructions ther...
内存管理内幕：动态分配的选择、折衷和实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
...空间，可以访问比您物理上安装的内存更多的内存。
在 32-位 x86 系统上，每一个进程可以访问 4 GB 内存。现在，大部分人的系统上并没有 4 GB 内存， 即使您将 swap 也算上， 每个进程所使用的内存也肯定少于 4 GB。因此，当加载...
How to initialize const member variable in a class?
...|
edited Jun 12 '17 at 16:30
Rakete1111
41.2k1111 gold badges103103 silver badges135135 bronze badges
an...
What is the difference between Java RMI and RPC?
...
137
RPC is C based, and as such it has structured programming semantics, on the other side, RMI is ...
How to find if a native DLL file is compiled as x64 or x86?
...in /headers cv210.dll
64-bit
Microsoft (R) COFF/PE Dumper Version 10.00.30319.01
Copyright (C) Microsoft Corporation. All rights reserved.
Dump of file cv210.dll
PE signature found
File Type: DLL
FILE HEADER VALUES
8664 machine (x64)
6 number of sections
4...
Does delete on a pointer to a subclass call the base class destructor?
...
183
The destructor of A will run when its lifetime is over. If you want its memory to be freed and t...
Getting attributes of a class
...elpful.
EDIT:
For example,
class MyClass(object):
a = '12'
b = '34'
def myfunc(self):
return self.a
>>> import inspect
>>> inspect.getmembers(MyClass, lambda a:not(inspect.isroutine(a)))
[('__class__', type),
('__dict__',
<dictproxy {'__dict__': <at...
Delete all local git branches
...DME; git add README; git commit -m 'First commit'
[master (root-commit) 1d738b5] First commit
0 files changed, 0 insertions(+), 0 deletions(-)
create mode 100644 README
$ git branch Story-123-a
$ git branch Story-123-b
$ git branch Story-123-c
$ git branch --merged
Story-123-a
Story-123-b
St...
Backup/Restore a dockerized PostgreSQL database
...it
– Carl Levasseur
Apr 29 '15 at 9:31
42
To save some space on disk you might want to pipe the d...
How can I count the occurrences of a list item?
...you only want one item's count, use the count method:
>>> [1, 2, 3, 4, 1, 4, 1].count(1)
3
Don't use this if you want to count multiple items. Calling count in a loop requires a separate pass over the list for every count call, which can be catastrophic for performance. If you want to co...