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diff --git a/doc/tutorial/intro.md b/doc/tutorial/intro.md deleted file mode 100644 index 61510b87675..00000000000 --- a/doc/tutorial/intro.md +++ /dev/null @@ -1,57 +0,0 @@ -# Introduction - -## Scope - -This is a tutorial for the Rust programming language. It assumes the -reader is familiar with the basic concepts of programming, and has -programmed in one or more other languages before. The tutorial covers -the whole language, though not with the depth and precision of the -[language reference][1]. - -[1]: http://www.rust-lang.org/doc/rust.html - -## Disclaimer - -Rust is a language under development. The general flavor of the -language has settled, but details will continue to change as it is -further refined. Nothing in this tutorial is final, and though we try -to keep it updated, it is possible that the text occasionally does not -reflect the actual state of the language. - -## First Impressions - -Though syntax is something you get used to, an initial encounter with -a language can be made easier if the notation looks familiar. Rust is -a curly-brace language in the tradition of C, C++, and JavaScript. - - fn fac(n: int) -> int { - let result = 1, i = 1; - while i <= n { - result *= i; - i += 1; - } - ret result; - } - -Several differences from C stand out. Types do not come before, but -after variable names (preceded by a colon). In local variables -(introduced with `let`), they are optional, and will be inferred when -left off. Constructs like `while` and `if` do not require parenthesis -around the condition (though they allow them). Also, there's a -tendency towards aggressive abbreviation in the keywords—`fn` for -function, `ret` for return. - -You should, however, not conclude that Rust is simply an evolution of -C. As will become clear in the rest of this tutorial, it goes in -quite a different direction. - -## Conventions - -Throughout the tutorial, words that indicate language keywords or -identifiers defined in the example code are displayed in `code font`. - -Code snippets are indented, and also shown in a monospace font. Not -all snippets constitute whole programs. For brevity, we'll often show -fragments of programs that don't compile on their own. To try them -out, you might have to wrap them in `fn main() { ... }`, and make sure -they don't contain references to things that aren't actually defined. |
