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Convert SVG image to PNG with PHP
...t involves a dynamically generated map of the US coloring different states based on a set of data.
8 Answers
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Creating a BLOB from a Base64 string in JavaScript
I have Base64-encoded binary data in a string:
12 Answers
12
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What static analysis tools are available for C#? [closed]
...integrated into Visual Studio 2012 and later as Code Analysis
Clocksharp, based on code source analysis (to C# 2.0)
Mono.Gendarme, similar to Fxcop but with an opensource licence (based on Mono.Cecil)
Smokey, similar to Fxcop and Gendarme, based on Mono.Cecil. No longer on development, the main d...
Safely override C++ virtual functions
I have a base class with a virtual function and I want to override that function in a derived class. Is there some way to make the compiler check if the function I declared in the derived class actually overrides a function in the base class? I would like to add some macro or something that ensures ...
How to escape single quotes in MySQL
...escape_string($var);
?>
This will solve your problem, because the database can't detect the special characters of a string.
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Downcasting shared_ptr to shared_ptr?
...amic_pointer_cast. It is supported by std::shared_ptr.
std::shared_ptr<Base> base (new Derived());
std::shared_ptr<Derived> derived =
std::dynamic_pointer_cast<Derived> (base);
Documentation: https://en.cppreference.com/w/cpp/memory/shared_ptr/pointer_cast
Also, ...
Hiding a password in a python script (insecure obfuscation only)
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Base64 encoding is in the standard library and will do to stop shoulder surfers:
>>> import base64
>>> print(base64.b64encode("password".encode("utf-8")))
cGFzc3dvcmQ=
>>> print(base64.b64decode("...
In-Place Radix Sort
... seq.length passes through the array.
void radixSort(string[] seqs, size_t base = 0) {
if(seqs.length == 0)
return;
size_t TPos = seqs.length, APos = 0;
size_t i = 0;
while(i < TPos) {
if(seqs[i][base] == 'A') {
swap(seqs[i], seqs[APos++]);
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C++ templates that accept only certain types
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I suggest using Boost's static assert feature in concert with is_base_of from the Boost Type Traits library:
template<typename T>
class ObservableList {
BOOST_STATIC_ASSERT((is_base_of<List, T>::value)); //Yes, the double parentheses are needed, otherwise the comma will be...
Is it possible to have nested templates in Go using the standard library?
...time. TBC what I mean is how do I have a bunch of templates inherit from a base templates, just filing in blocks of the base templates, like Jinja/django-templates does. Is it possible using just html/template in the standard library.
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