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Is it better in C++ to pass by value or pass by constant reference?
...or large objects that implement proper move constructors (such as vectors, strings …), the second case is then vastly more efficient than the first. Therefore, it is recommended to use pass by value if the function takes ownership of the argument, and if the object type supports efficient moving.
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How would you count occurrences of a string (actually a char) within a string?
...mething where I realised I wanted to count how many / s I could find in a string, and then it struck me, that there were several ways to do it, but couldn't decide on what the best (or easiest) was.
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Remove all occurrences of char from string
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Try using the overload that takes CharSequence arguments (eg, String) rather than char:
str = str.replace("X", "");
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Check substring exists in a string in C
I'm trying to check whether a string contains a substring in C like:
12 Answers
12
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Easiest way to split a string on newlines in .NET?
I need to split a string into newlines in .NET and the only way I know of to split strings is with the Split method. However that will not allow me to (easily) split on a newline, so what is the best way to do it?
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C/C++ with GCC: Statically add resource files to executable/library
...This works, because a) Most executable image formats don't care if there's extra data behind the image and b) zip stores the file signature at the end of the zip file. This means, your executable is a regular zip file after this (except for your upfront executable, which zip can handle), which can b...
Why can't C++ be parsed with a LR(1) parser?
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I'm quite puzzled by the citation extracted from a PhD Thesis. If there is an ambiguïty, then, by definition, NO lookahead may ever "resolve" the ambiguity (i.e. decide which parse is the correct oen, as at least 2 parses are considered correct by the gramma...
Share application “link” in Android
... shareIntent.putExtra(Intent.EXTRA_SUBJECT, "My application name");
String shareMessage= "\nLet me recommend you this application\n\n";
shareMessage = shareMessage + "https://play.google.com/store/apps/details?id=" + BuildConfig.APPLICATION_ID +"\n\n";
shareIntent.putExtra(Intent.EXTR...
Unmangling the result of std::type_info::name
...ures.
In file type.hpp
#ifndef TYPE_HPP
#define TYPE_HPP
#include <string>
#include <typeinfo>
std::string demangle(const char* name);
template <class T>
std::string type(const T& t) {
return demangle(typeid(t).name());
}
#endif
In file type.cpp (requires C++11)
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LINQ: “contains” and a Lambda query
... open,
closed,
weird,
};
public string Name { get; set; }
public StatusType Status { get; set; }
}
public static List <Building> buildingList = new List<Building> ()
{
new Building () { Name = "one", Status = Buildin...