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Why should eval be avoided in Bash, and what should I use instead?
...quoted first. Here's how:
This function which will do it for you:
function token_quote {
local quoted=()
for token; do
quoted+=( "$(printf '%q' "$token")" )
done
printf '%s\n' "${quoted[*]}"
}
Example usage:
Given some untrusted user input:
% input="Trying to hack you; date"
Construct ...
error C2664: “std::list::list(const std::allocator &)”: 不能将参数 1...
error C2664: “std::list::list(const std::allocator &)”: 不能将参数 1 从 “std::vector”转换为“const std::allocator &”错误日志：error C2664: std::list<_Ty>::list(const std::allocator<_Ty> &): 不能将参数 1 从std::vector<_Ty>转换为const std::...错误日志：
error ...
what is the difference between 'transform' and 'fit_transform' in sklearn
...e methods:
fit(raw_documents[, y]): Learn a vocabulary dictionary of all tokens in the raw documents.
fit_transform(raw_documents[, y]): Learn the vocabulary dictionary and return term-document matrix. This is equivalent to fit followed by the transform, but more efficiently implemented.
transform...
Dynamically replace the contents of a C# method?
...they have some - for instance, '.call' has one argument: the called method token, and '.pop' has none)
Correspondence between IL codes and bytes you find in the returned array may be found using OpCodes.YourOpCode.Value (which is the real opcode byte value as saved in your assembly)
Arguments append...
What are Runtime.getRuntime().totalMemory() and freeMemory()?
...hy there is a totalMemory() AND a maxMemory(). The answer is that the JVM allocates memory lazily. Lets say you start your Java process as such:
java -Xms64m -Xmx1024m Foo
Your process starts with 64mb of memory, and if and when it needs more (up to 1024m), it will allocate memory. totalMemory...
How to allocate aligned memory only using the standard library?
...
Original answer
{
void *mem = malloc(1024+16);
void *ptr = ((char *)mem+16) & ~ 0x0F;
memset_16aligned(ptr, 0, 1024);
free(mem);
}
Fixed answer
{
void *mem = malloc(1024+15);
void *ptr = ((uintptr_t)mem+15) & ~ (uintptr_t)0x0...
Use of alloc init instead of new
...ere are a bunch of reasons here: http://macresearch.org/difference-between-alloc-init-and-new
Some selected ones are:
new doesn't support custom initializers (like initWithString)
alloc-init is more explicit than new
General opinion seems to be that you should use whatever you're comfortable wi...
App Inventor 2 注册登录功能教程 - 网络微数据库实现用户系统 · App Inventor 2 中文网
...要先验证邮箱：发验证码 → 校验验证码得到 verification_token → 带着它注册。三步都是异步的，结果在各自的事件里拿到。接口返回的 data 是 JSON 文本，用 Web 客户端组件的 JsonTextDecodeWithDictionaries 解析成字典再取字段。
界面组...
How to compute the similarity between two text documents?
...ion_map = dict((ord(char), None) for char in string.punctuation)
def stem_tokens(tokens):
return [stemmer.stem(item) for item in tokens]
'''remove punctuation, lowercase, stem'''
def normalize(text):
return stem_tokens(nltk.word_tokenize(text.lower().translate(remove_punctuation_map)))
ve...
SAML: Why is the certificate within the Signature?
...ficate is in the SAML message. This is used to check the signature for the token itself, and of course to allow receivers to tell who issued the token and treat it accordingly.
The fact that it's in there is part of the XML digital signature specs, it's not really anything SAML specific. Without th...