大约有 16,199 项符合查询结果(耗时:0.0378秒) [XML]
symbol(s) not found for architecture i386
...
18 Answers
18
Active
...
What’s the best way to check if a file exists in C++? (cross platform)
I have read the answers for What's the best way to check if a file exists in C? (cross platform) , but I'm wondering if there is a better way to do this using standard c++ libs? Preferably without trying to open the file at all.
...
Getting indices of True values in a boolean list
I have a piece of my code where I'm supposed to create a switchboard. I want to return a list of all the switches that are on. Here "on" will equal True and "off" equal False . So now I just want to return a list of all the True values and their position. This is all I have but it only return t...
RegEx for Javascript to allow only alphanumeric
I need to find a reg ex that only allows alphanumeric. So far, everyone I try only works if the string is alphanumeric, meaning contains both a letter and a number. I just want one what would allow either and not require both.
...
How do you do block comments in YAML?
How do I comment a block of lines in YAML?
11 Answers
11
...
Why aren't variable-length arrays part of the C++ standard?
I haven't used C very much in the last few years. When I read this question today I came across some C syntax which I wasn't familiar with.
...
MongoDB mongorestore failure: locale::facet::_S_create_c_locale name not valid
I created a dump with mongodump on computer A (ubuntu 12.04 server). I moved it to computer B (ubuntu 12.04 server) and typed:
...
Encoding as Base64 in Java
I need to encode some data in the Base64 encoding in Java. How do I do that? What is the name of the class that provides a Base64 encoder?
...
Length of an integer in Python
In Python, how do you find the number of digits in an integer?
22 Answers
22
...
Why use pointers? [closed]
I know this is a really basic question, but I've just started with some basic C++ programming after coding a few projects with high-level languages.
...
