__func__ is an implicitly declared identifier that expands to a character array variable containing the function name when it is used inside of a function. It was added to C in C99. From C99 §6.4.2.2/1: The identifier __func__ is implicitly declared by the translator as if, immediately following the opening brace of each function definition, … Read more
As with all technologies, it has its ups and downs. If you are using an iframe to get around a properly developed site, then of course it is bad practice. However sometimes an iframe is acceptable. One of the main problems with an iframe has to do with bookmarks and navigation. If you are using … Read more
Enums are classes and should follow the conventions for classes. Instances of an enum are constants and should follow the conventions for constants. So enum Fruit {APPLE, ORANGE, BANANA, PEAR}; There is no reason for writing FruitEnum any more than FruitClass. You are just wasting four (or five) characters that add no information. This approach … Read more
There isn’t one. I use underscores all the time, due to hyphens messing up the syntax highlighting of my text editor (Gedit), but that’s personal preference. I’ve seen all these conventions used all over the place. Use the one that you think is best – the one that looks nicest/easiest to read for you, as … Read more
PDF versions of the standard As of 1st September 2014 March 2022, the best locations by price for the official C and C++ standards documents in PDF seem to be: C++20 – ISO/IEC 14882:2020: 212 CAD (about $165 US) from csagroup.org C++17 – ISO/IEC 14882:2017: $90 NZD (about $65 US) from Standards New Zealand C++14 … Read more
[*] (Background: I have some experience implementing C and C++ compilers.) Variable-length arrays in C99 were basically a misstep. In order to support VLAs, C99 had to make the following concessions to common sense: sizeof x is no longer always a compile-time constant; the compiler must sometimes generate code to evaluate a sizeof-expression at runtime. … Read more
Here is a good article from the MDC which explains the problems (and solutions) to form autocompletion. Microsoft has published something similar here, as well. To be honest, if this is something important to your users, ‘breaking’ standards in this way seems appropriate. For example, Amazon uses the ‘autocomplete’ attribute quite a bit, and it … Read more
I just queried my database with millions of customers in the USA. The maximum first name length was 46. I go with 50. (Of course, only 500 of those were over 25, and they were all cases where data imports resulted in extra junk winding up in that field.) Last name was similar to first … Read more
Language features: Templates and Generic Code Template argument deduction for class templates Like how functions deduce template arguments, now constructors can deduce the template arguments of the class http://wg21.link/p0433r2 http://wg21.link/p0620r0 http://wg21.link/p0512r0 template <auto> Represents a value of any (non-type template argument) type. Non-type template arguments fixes template<template<class…>typename bob> struct foo {} ( Folding + … … Read more
The rules (which did not change in C++11): Reserved in any scope, including for use as implementation macros: identifiers beginning with an underscore followed immediately by an uppercase letter identifiers containing adjacent underscores (or “double underscore”) Reserved in the global namespace: identifiers beginning with an underscore Also, everything in the std namespace is reserved. (You … Read more