Why learn about compilers?
Few people will ever be required to write a compiler for a general-purpose language like C, Pascal or SML. So why do most computer science institutions offer compiler courses and often make these mandatory Some typical reasons are:
It is considered a topic that you should know in order to be “well-cultured” in computer science.
A good craftsman should know his tools, and compilers are important tools for programmers and computer scientists.
The techniques used for constructing a compiler are useful for other purposes...
Wednesday, March 26, 2014
Posted by Knowledegehub on 3:43 AM with 1 comment
Compiler Requirements
Correctness.
Correctness
is absolutely paramount. A buggy compiler is next to useless in practice. Since
we cannot formally prove the correctness of your compilers, we use extensive
testing. This testing is end-to-end, verifying the correctness of the generated
code on sample inputs. We also verify that your compiler rejects programs as
expected when the input is not well-formed (lexically, syntactically, or with
respect to the static semantics), and that the generated code raises an
exception as expected if the language...
Posted by Knowledegehub on 2:52 AM with No comments
Definitions:
Translator
A device that changes a sentence from one language to another without change of meaning.
Compiler
A program that translates between programming languages.
Interpreter
A processor that compiles and executes programming language statements one by one in an interleaved manner.
Syntax
An alphabet and a set of rules defining spatial relationships between symbols and symbol sets in a language.
Semantics
The meanings assigned to symbols and symbol sets in a language.
Pragmatics
The...
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