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Is there a max array length limit in C++?
...ypically takes multiple times as much memory as an array of type vector<char> (minus a small constant value), since int is usually bigger than char. Therefore, a vector<char> may contain more items than a vector<int> before memory is full. The same counts for raw C-style arrays lik...
Is there an equivalent for var_dump (PHP) in Javascript?
...
A lot of modern browsers support the following syntax:
JSON.stringify(myVar);
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Converting bool to text in C++
...s is a dumb question, but is there any way to convert a boolean value to a string such that 1 turns to "true" and 0 turns to "false"? I could just use an if statement, but it would be nice to know if there is a way to do that with the language or standard libraries. Plus, I'm a pedant. :)
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What is __stdcall?
...s, but pinvoke.net gives this signature: "static extern int wsprintf([Out] StringBuilder lpOut, string lpFmt, ...);"
– Michael Burr
Nov 21 '08 at 4:54
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How To Test if Type is Primitive
...e can think that are primitives, but they aren´t, for example Decimal and String.
Edit 1: Added sample code
Here is a sample code:
if (t.IsPrimitive || t == typeof(Decimal) || t == typeof(String) || ... )
{
// Is Primitive, or Decimal, or String
}
Edit 2: As @SLaks comments, there are othe...
MVC (Laravel) where to add logic
...extends Controller
{
/**
* Creates a new post.
*
* @return string
*/
public function store(PostRequest $request)
{
if ($request->persist(new Post())) {
flash()->success('Successfully created new post!');
} else {
flash()->e...
Why do we use __init__ in Python classes?
...ike add or __init__) purpose is to describe how to convert the object to a string, like when you print it out.
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Split string every nth character?
Is it possible to split a string every nth character?
16 Answers
16
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How I can I lazily read multiple JSON values from a file/stream in Python?
...lures return a ValueError, and you have to parse out the position from the string, e.g.
def stream_read_json(fn):
import json
import re
start_pos = 0
with open(fn, 'r') as f:
while True:
try:
obj = json.load(f)
yield obj
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了解 Boost Filesystem Library - C/C++ - 清泛网 - 专注C/C++及内核技术
...过多种方式进行初始化，最常见的方式是使用 char* 或std::string 进行初始化，如清单 2 中所示。
清单 2. 创建 Boost path 对象的方法
path(); // empty path
path(const char* pathname);
path(const std::string& pathname);
path(const char* pathname, boost::f...