I think that the best way of doing this, as Douglas Crockford (one of the biggests gurus of JavaScript) suggests in here is using the JSON native parser, as it is not only faster than the eval(), it’s also more secure. Native JSON parser is already available in: Firefox 3.5+ IE 8+ Opera 10.5+ Safari … Read more
You can actually do this: std::map<std::string, int> mymap = {{“one”, 1}, {“two”, 2}, {“three”, 3}}; What is actually happening here is that std::map stores an std::pair of the key value types, in this case std::pair<const std::string,int>. This is only possible because of c++11’s new uniform initialization syntax which in this case calls a constructor overload … Read more
The typing module provides a function get_args which retrieves the arguments with which your Literal was initialized. >>> from typing import Literal, get_args >>> l = Literal[‘add’, ‘mul’] >>> get_args(l) (‘add’, ‘mul’) However, I don’t think you gain anything by using a Literal for what you propose.
This is what I do: q := `UPDATE mytable SET (I, Have, Lots, Of, Fields) = ` + `(‘suchalongvalue’, ` + `’thisislongaswell’, ` + `’wowsolong’, ` + `loooooooooooooooooooooooooong’)` db.Exec(q) I think it looks a lot cleaner
Am I doing something wrong or is this a bug in gcc? The problem is in 47942806932686753431 part, not in __uint128_t p. According to gcc docs there’s no way to declare 128 bit constant: There is no support in GCC for expressing an integer constant of type __int128 for targets with long long integer less … Read more
Double-quoted strings support the full range of escape sequences, as shown below: \a Bell/alert (0x07) \b Backspace (0x08) \e Escape (0x1b) \f Formford (0x0c) \n Newline (0x0a) \r Return (0x0d) \s Space (0x20) \t Tab (0x09) \v Vertical tab (0x0b) For single-quoted strings, two consecutive backslashes are replaced by a single backslash, and a backslash … Read more
They are of type char[N] where N is the number of characters including the terminating \0. So yes you can assign them to char*, but you still cannot write to them (the effect will be undefined). Wrt argv: It points to an array of pointers to strings. Those strings are explicitly modifiable. You can change … Read more
According to Programming in Lua 2.4 Strings: We can delimit literal strings also by matching double square brackets [[…]]. Literals in this bracketed form may run for several lines, may nest, and do not interpret escape sequences. Moreover, this form ignores the first character of the string when this character is a newline. This form … Read more
A simple grep of the SDK shows us that the answer is that it doesn’t matter—they are the same. They both turn into __T(x). C:\…\Visual Studio 8\VC>findstr /spin /c:”#define _T(” *.h crt\src\tchar.h:2439:#define _T(x) __T(x) include\tchar.h:2390:#define _T(x) __T(x) C:\…\Visual Studio 8\VC>findstr /spin /c:”#define _TEXT(” *.h crt\src\tchar.h:2440:#define _TEXT(x) __T(x) include\tchar.h:2391:#define _TEXT(x) __T(x) And for completeness: C:\…\Visual Studio … Read more
In JDK 7 it is possible: int binaryInt = 0b101; Just prefix your number with 0b.