#KEYPAD WITH LETTERS HOW TO#
#KEYPAD WITH LETTERS CODE#

Phonewords are the most common vanity numbers, although a few all-numeric vanity phone numbers are used. By replacing the digits of a telephone number with the corresponding letters, it is sometimes possible to form a whole or partial word, an acronym, abbreviation, or some other alphanumeric combination. In many countries, the digits on the telephone keypad also have letters assigned.

Phonewords are mnemonic phrases represented as alphanumeric equivalents of a telephone number. Many telephone keypads have letters with the numbers, from which words can be formed. ( Learn how and when to remove this template message) JSTOR ( April 2008) ( Learn how and when to remove this template message).Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources. You can also inherit from std::vector and use the derived class instead, but the usual trick of adding an extra default function argument doesn't work here because operator* may not have 3 arguments.This article needs additional citations for verification. You can either specialize std::multiplies to perform the multiplication directly, or you could place a declaration of your operator* before you include any standard library headers. Of course you cannot do the first option, since adding names to the standard namespace is cause for undefined behavior.

declaring the function before its point of use. relying on Koenig lookup by putting the missing function in the namespace of one of its arguments or In other words, unqualified name lookup happens at the name, not at the point of instantiation, and operator* isn't found. args) and therefore the operator* isn't visible at that point. Std::multiplies is defined before std::vector operator * ( const std::vector& lhs, Args.

#KEYPAD WITH LETTERS CODE#

GCC accepts incorrect code in this case, but this shouldn't compile and indeed Clang chokes on the program. TelNumberKeys.push_back(keys.find(elem)->second) Īuto result = std::accumulate(telNumberKeys.begin()+1, telNumberKeys.end(), telNumberKeys, std::multiplies()) įor ( const auto& elem : result)std::cout << elem << it's my turn to point out compiler errors ) Store your integer to possible characters mapping as, e.g., an array of strings say: checking numbers entered for letters using ASCII Table // for ( int x = 0 x < MAX ++x) #include #include #include using namespace std Ĭout << 'Converting numbers to letters on a phone keypad ' << 'Formatted as (#.#.#) ' << 'Please enter phone number ' Could someone shed some light on this for me and possibly show me how the coding for it works? Thanks to anyone in advance!

#KEYPAD WITH LETTERS HOW TO#

txt file, but I am having a hard time understanding how to write to it so that it corresponds with every possible seven-letter word that corresponds to the number that the user inputs and how to make it so that the program prompts the user to choose the filename they want. Should I be using that rather than trying to use a switch statement? Second, I understand how to send basic information to a. Now I did find the ASCII table on the internet. Just as well they are not storing them into a file.

So I have been trying to find other forums on this but I can only find threads that convert the letters on the keypad to the numbers, not the other way around. Avoid phone numbers with the digits 0 and 1. There are 2187 (3 to the seventh power) such words. User should be prompted to choose the appropriate filename. Write a program that prompts the user for a seven-digit number and writes to a file every possible seven-letter word corresponding to that number. So I am going to keep the explanation of my assignment simple, by posting what we are to do for the assignment below then explaining what I am having trouble with.

Keypad with letters