This is a conscientious choice from Python. Firstly, with regards to patching inbuilt type, this is primarily a design decision and only secondarily an optimization. I have learnt from much lurking on the Python Mailing List that monkey patching on builtin types, although enjoyable for small scripts, serves no good purpose in anything larger. Libraries, … Read more
char arrays or char pointers aren’t really the same thing as string class objects in C++, so this if (option == “foo”) Doesn’t compare the string option to the string literal “foo” it compares the address of option with the address of the string literal “foo”. You need to use one of the many string … Read more
C99 C11 introduced compound literals which allow not only a complicated initialized structure, but also an “in-line” variable. Code can call a conversion function and pass in a new buffer (char [UTOA_BASE_N]){0} per each function call allowing the function to return that same buffer, now written as needed that is still within its lifetime. The … Read more
Yes, you should use the f suffix. Reasons include: Performance. When you write float foo(float x) { return x*3.14; }, you force the compiler to emit code that converts x to double, then does the multiplication, then converts the result back to single. If you add the f suffix, then both conversions are eliminated. On … Read more
This code is fine across all platforms. The string gets compiled into the binary as a static string literal. If you are on windows for example you can even open your .exe with notepad and search for the string itself. Since it is a static string literal scope does not matter. String pooling: One thing … Read more
It is a const char[N] (which is the same thing as char const[N]), where N is the length of the string plus one for the terminating NUL (or just the length of the string if you define “length of a string” as already including the NUL). This is why you can do sizeof(“hello”) – 1 … Read more
You can still use a class literal, even for an array type. This compiles just fine. Class<String[]> clazz = String[].class; Class<byte[]> clazz2 = byte[].class; Section 15.8.2 of the JLS states: A class literal is an expression consisting of the name of a class, interface, array, or primitive type, or the pseudo-type void, followed by a … Read more
Starting with Java 7 you can represent integer numbers directly as binary numbers, using the form 0b (or 0B) followed by one or more binary digits (0 or 1). For example, 0b101010 is the integer 42. Like octal and hex numbers, binary literals may represent negative numbers. If you do not have Java 7 use … Read more
No. Escaping / externalizing the string is your only choice.
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