大约有 41,760 项符合查询结果（耗时：0.0317秒） [XML]
Check if a class has a member function of a given signature
I'm asking for a template trick to detect if a class has a specific member function of a given signature.
16 Answers
...
How to write a large buffer into a binary file in C++, fast?
I'm trying to write huge amounts of data onto my SSD(solid state drive). And by huge amounts I mean 80GB.
12 Answers
...
In Matlab, when is it optimal to use bsxfun?
My Question: I've noticed that a lot of good answers to Matlab questions on SO frequently use the function bsxfun . Why?
...
How do I edit an existing tag message in git?
We have several annotated tags in our git repository. The older tags have bogus messages that we would like to update to be in our new style.
...
Create a dictionary with list comprehension
I like the Python list comprehension syntax.
14 Answers
14
...
Modular multiplicative inverse function in Python
Does some standard Python module contain a function to compute modular multiplicative inverse of a number, i.e. a number y = invmod(x, p) such that x*y == 1 (mod p) ? Google doesn't seem to give any good hints on this.
...
Fastest way to replace NAs in a large data.table
I have a large data.table , with many missing values scattered throughout its ~200k rows and 200 columns. I would like to re code those NA values to zeros as efficiently as possible.
...
C++ unordered_map using a custom class type as the key
I am trying to use a custom class as key for an unordered_map , like the following:
3 Answers
...
Why should I not wrap every block in “try”-“catch”?
I have always been of the belief that if a method can throw an exception then it is reckless not to protect this call with a meaningful try block.
...
Removing all empty elements from a hash / YAML?
How would I go about removing all empty elements (empty list items) from a nested Hash or YAML file?
20 Answers
...