Program Structure

EmSys:C – Program_StructureEmSys:C - FunctionsEmSys:C - Function DeclarationEmSys:C - Function DefinitionEmSys:C - Invoking a FunctionEmSys:C - VariablesEmSys:C - Local VariablesEmSys:C - Global variablesEmSys:C - Static VariablesEmSys:C - External variablesEmSys:C - External variables2EmSys:C - Register variablesEmSys:C - Declaration and DefinitionEmSys:C - Scope RulesEmSys:C - Header filesEmSys:C - TypecastingEmSys:C - Implicit Type ConversionEmSys:C - Explicit type conversionEmSys:C - Explicit type conversion2EmSys:C - PreprocessorEmSys:C - File InclusionEmSys:C - Macro SubstitutionEmSys:C - Conditional CompilationEmSys:C - Conditional Compilation2EmSys:C - Line controlEmSys:C - Error GenerationEmSys:C - PragmsEmSys:C - Predefined NamesEmSys:C - DiagnosticsEmSys:C - Diagnostics2 MediaWiki Presentation EmSys:C – Program_Structure Slide 1 of 30

Program Structure A C – Program consists of variables and functions which are either internal or external. C - Programs generally consist of many small functions rather than a few big ones. Communication between the functions is by arguments, values returned by the functions, and through external variables. A program may be divided into one or more source files. Source files may be compiled separately and linked together, along with previously compiled functions from libraries to form a final program.