Can a program print its own source code?

Can a program print its own source code?

A quine is a computer program which takes no input and produces a copy of its own source code as its only output. The standard terms for these programs in the computability theory and computer science literature are “self-replicating programs”, “self-reproducing programs”, and “self-copying programs”.

How do you write source code into a program?

When source code is compiled, it is turned into an actual program (machine code) through a series of steps:

  1. Source code is turned into object code by a compiler. Object code is the machine code that is actually executed by the computer.
  2. Object code is passed through a linker.

How do you write a program which produces its own source code as its output?

C program to display its own source code as output

  1. #include int main() { printf(“\n%s\n”,__FILE__); }
  2. #include #include int main() { //file pointer.
  3. //open the file. fp = fopen(__FILE__, “r”); if(fp == NULL) { printf(“Error in opening the file\n”);
  4. //read till EOF. do. { ch = fgetc(fp);

How can I see the source code of a program?

How to View Source Code

  1. Firefox: CTRL + U (Meaning press the CTRL key on your keyboard and hold it down. While holding down the CTRL key, press the “u” key.)
  2. Edge/Internet Explorer: CTRL + U. Or right click and select “View Source.”
  3. Chrome: CTRL + U.
  4. Opera: CTRL + U.

Why is self-modifying code bad?

Self-modifying code is generally frowned upon. Not only is it hard to read and debug, it also creates problems with the cache (“cache coherence”). Similar to registers, cache memory is fast in comparison to “main” memory (but cache is typically a little slower than registers.) …

Can AI write codes?

Microsoft and Cambridge University researchers have developed artificial intelligence that can write code and called it DeepCoder. The tool can write working code after searching through a huge code database.

What would happen if main () is not present in a program?

Answer: if main() is not present in a program then also it can be compiled properly but you will not be able to run it.

How does a C program display its own source code?

Though this problem seems complex, the concept behind this program is straightforward; display the content from the same file you are writing the source code. In C programming, there is a predefined macro named __FILE__ that gives the name of the current input file.

What do you need to write source code?

Create source code. To write a source code, all you really need is a simple text editor – like the Notepad on Windows or TextEdit on Mac. This way, source code can be saved as plain text (e.g. in ASCII coding or with UTF-8 encoding) with the correct file name ending for the programming language.

Why are comments entered in the source code?

Comments are entered into the source code, for example, so that you or another developer can continue to understand parts of the code in the future. With the creation of a source code, there’s always a problem to solve. Developers write programs in order to provide solutions. The way to do that, though, is not set in stone.

How is source code translated to machine code?

For the computer to understand these languages, however, they need to first be translated into machine code. For the computer to be able to further process the source code written by the programmer, there needs to be a translation between the two – this occurs in the form of an additional program.