Dev C%2b%2b Reserved Words
Dev-C, developed by Bloodshed Software, is a fully featured graphical IDE (Integrated Development Environment), which is able to create Windows or console-based C/C programs using the MinGW compiler system. MinGW (Minimalist GNU. for Windows) uses GCC (the GNU g compiler collection), which is essentially the same compiler system that is. Auto break case: char: const: continue: default: do double else: enum: extern float far: goto: if: int: long: register: return: short: signed: sizeof. Specific compilers may also have additional specific reserved keywords. Very important: The C language is a 'case sensitive' language. That means that an identifier written in capital letters is not equivalent to another one with the same name but written in small letters. There are a total of 95 reserved words in C. Cemcade software download. The reserved words of C may be conveniently placed into several groups. In the first group, we put those that were also present in the C programming language and have been carried over into C. There are 32 of these.
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Keywords are those words whose meaning is already defined by Compiler. These keywords cannot be used as an identifier. Note that keywords are the collection of reserved words and predefined identifiers. Predefined identifiers are identifiers that are defined by the compiler but can be changed in meaning by the user.
For example, you could declare a variable called main inside your main function, initialize it, and then print out its value (but ONLY do that to verify that you can!). On the other hand, you could not do this with a variable named else. The difference is that else is a reserved word, while main is 'only' a predefined identifier.
There are a total of 95 reserved words in C++. The reserved words of C++ may be conveniently placed into several groups. In the first group, we put those that were also present in the C programming language and have been carried over into C++. There are 32 of these.
There are another 30 reserved words that were not in C, are therefore new to C++ programming language.
There are 11 C++ reserved words that are not essential when the standard ASCII character set is being used, but they have been added to provide readable alternatives for a few of the C++ operators, and also to facilitate programming with character sets that lack characters required by C++.
Here is a list of all these reserved words:
| alignas (since C++11) | double | reinterpret_cast |
| alignof (since C++11) | dynamic_cast | requires (since C++20) |
| and | else | return |
| and_eq | enum | short |
| asm | explicit | signed |
| atomic_cancel (TM TS) | export(1) | sizeof(1) |
| atomic_commit (TM TS) | extern(1) | static |
| atomic_noexcept (TM TS) | false | static_assert (since C++11) |
| auto(1) | float | static_cast |
| bitand | for | struct(1) |
| bitor | friend | switch |
| bool | goto | synchronized (TM TS) |
| break | if | template |
| case | import (modules TS) | this |
| catch | inline(1) | thread_local (since C++11) |
| char | int | throw |
| char16_t (since C++11) | long | true |
| char32_t (since C++11) | module (modules TS) | try |
| class(1) | mutable(1) | typedef |
| compl | namespace | typeid |
| concept (since C++20) | new | typename |
| const | noexcept (since C++11) | union |
| constexpr (since C++11) | not | unsigned |
| const_cast | not_eq | using(1) |
| continue | nullptr (since C++11) | virtual |
| co_await (coroutines TS) | operator | void |
| co_return (coroutines TS) | or | volatile |
| co_yield (coroutines TS) | or_eq | wchar_t |
| decltype (since C++11) | private | while |
| default(1) | protected | xor |
| delete(1) | public | xor_eq |
| do | register(2) |
Given a string str, we need to print reverse of individual words.
Examples:
Method 1 (Simple): Generate all words separated by space. One by one reverse words and print them separated by space.
Method 2 (Space Efficient): We use a stack to push all words before space. As soon as we encounter a space, we empty the stack.
C++
Dev C 2b 2b Reserved Words Worksheets
// C++ program to reverse individual words in a given #include <bits/stdc++.h> voidreverseWords(string str) stack<char> st; // Traverse given string and push all characters for(inti = 0; i < str.length(); ++i) { st.push(str[i]); // When we see a space, we print contents else{ cout << st.top(); } } // last word. cout << st.top(); } intmain() string str = 'Geeks for Geeks'; return0; |
Java
// words in a given string using STL list importjava.util.*; classGFG { // reverses individual words of a string { // characters to stack until we see a space. if(str.charAt(i) != ' ') // contents of stack. while(st.empty() false) { System.out.print(' '); } // Since there may not be space after while(st.empty() false) { } // Driver program to test above function { reverseWords(str); } |
C#
// words in a given string using STL list usingSystem.Collections.Generic; classGFG // of a string { // all characters to stack until for(inti = 0; i < str.Length; ++i) if(str[i] != ' ') st.Push(str[i]); // print contents of stack. { { Console.Write(' '); } // Since there may not be while(st.Count > 0) Console.Write(st.Pop()); } publicstaticvoidMain(string[] args) stringstr = 'Geeks for Geeks'; } // by Shrikant13 |
Dev C 2b 2b Reserved Words Examples
Output:
Using stringstream in C++ :
usingnamespacestd; voidprintWords(string str) // word variable to store word stringstream iss(str); // Read and print each word. reverse(word.begin(),word.end()); } intmain() string s = 'GeeksforGeeks is good to learn'; return0; // This code is contributed by Nikhil Rawat |
Time complexity : O(n)
Space complexity : O(n)