On the menu today

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On the menu today

• I- Syntax and semantics - Programs format
• II- Compilation Execution (CE)

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I- Syntax and semantics - Programs format
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• A- Syntax refers to

• 1- sentences structure
• 2- the way in which words are put together to
  form sentence,
• 3- It provide a set of rules

• It is important in programming languages, in C

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• B- Semantics refers to

• 1- the study of the the meaning of signs,
  symbols

• C has many symbols, some with different
  meaning under different circumstances.

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• C- Programs format Criteria for a good program

• 1- correct syntax
• 2- correct behavior
• 3- good style (guidelines for readability)

• Its important that our program source be
  readable

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• II- Compilation Execution (CE)

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• A- Compilers

• After writing a high-level language program
  (source program, source code) it needs to be
  trnaslated into a machine language program,
  object program before it runs.

• Program that can do such translation are called
  compilers

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• B- Compilation Process

Program Source
Program Object
Program executable
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• B- Vocabulary about Compilation Execution

• 1- Source program or source code

• 2- Compile time errors syntactical errors we
  have made, which prevent the program from
  successful compilation

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• B- Vocabulary about Compilation Execution

• 3- Clean compile the result of compiling a
  syntactically correct program. There are no
  compile-time errors.

• 4- Executable the file containing the machine-
  language statements which the computer will
  execute.

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• B- Vocabulary about Compilation Execution

• 5- Execution results The behavior of the program
  when it actually executes on the computer

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• C- Compilation Execution Examples

• 1- Compilation Initializing C
  ompiling C\msvc\AGA\rectangl.cpp RECTANG
  L.CPP - 0 error(s), 0 warning(s)

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• C- Compilation Execution Examples

• 2- Execution (how it looks.) enter the length
  and the width of the rectangle 5
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  the area is20

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