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How to use stringstream to separate comma separated strings [duplicate]
...d::string input = "abc,def,ghi";
std::istringstream ss(input);
std::string token;
while(std::getline(ss, token, ',')) {
std::cout << token << '\n';
}
abc
def
ghi
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What's a good rate limiting algorithm?
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That is a standard algorithm—it's a token bucket, without queue. The bucket is allowance. The bucket size is rate. The allowance += … line is an optimization of adding a token every rate ÷ per seconds.
– derobert
Jan 26...
How are people managing authentication in Go? [closed]
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Answering this in 2018. I suggest using JWT(JSON Web Token). The answer you marked solved has drawback, which is the trip it did front(user) and back(server/db). What is worse if user did frequent request that need auth, will result in bloated request from/to server and databas...
How to do stateless (session-less) & cookie-less authentication?
...at this, but it could actually work - every request has a X-Authentication-Token header or something like that, and you map that to a database, file-store in memory, etc. on the backend to validate the user. This token can have a timeout of whatever time you specified, and if it times out, the user ...
INSERT IF NOT EXISTS ELSE UPDATE?
...ement case the statement would set it to NULL and then a fresh ID would be allocated.
This approach can also be used if you want to leave particular field values alone if the row in the replacement case but set the field to NULL in the insert case.
For example, assuming you want to leave Seen alon...
How do I ignore the authenticity token for specific actions in Rails?
When I have a specific action that I don't want to check the authenticity token on, how do I tell Rails to skip checking it?
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CloudBase 拓展：App接入腾讯云 BaaS（Backend as a Service，后端即服务）...
...份认证：注册、登录、图片验证码、短信/邮箱验证码、Token管理、用户管理
CloudBaseFunction
调用云函数，适合承接复杂业务逻辑
CloudBaseMySQL
操作 CloudBase MySQL / REST 风格表数据，支持查询、插入、...
How does PHP 'foreach' actually work?
...ns is that 'FYFY' has the same hash as the removed element 'EzFY', and the allocator happens to reuse the same memory location to store the element. So foreach ends up directly jumping to the newly inserted element, thus short-cutting the loop.
Substituting the iterated entity during the loop
One ...
Rails params explained?
... seeing that in rails4. For instance, {"_method"=>"put", "authenticity_token"=>"gubHya6uQrQLjPRXhOC0RUuCRdn7NFr6CeKrbRfBSHI=", "ripe"=>"true", "action"=>"update", "controller"=>"apples", "id"=>"4"}. Forgive me if I'm wrong, I'm a rails beginner. According to your note, I should ...
What does Redis do when it runs out of memory?
... time finding the answer. How does Redis 2.0 handle running out of maximum allocated memory? How does it decide which data to remove or which data to keep in memory?
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