1 - In C++ the declaration of floating point variables starts with the type name double, followed by the name of the variable, and terminates with a semicolon. It is possible to declare multiple variables separated by commas in one statement. The following statements present examples, double b; double a, z, w; The following partial grammar represents the specification for C++ style variable declaration. In this grammar the range a-z indicates terminals that represent variable names. A variable name consists of only one letter. The non-terminal S is the start symbol. S-TV; V-C, VIC T-float C-a-z We want to design an LR parser for this grammar. Create a complete parsing DFA, showing the closure for all states including the parsing marker in every rule, and transitions between the states. You can use the symbol @ as the parsing marker. States need to be numbered or named. You may write all required information in a table instead of drawing a DFA. There is no need to add $ at the end of start rule since there

1 - In C++ the declaration of floating point variables starts with the type name double, followed by the name of the variable, and terminates with a semicolon. It is possible to declare multiple variables separated by commas in one statement. The following statements present examples, double b; double a, z, w; The following partial grammar represents the specification for C++ style variable declaration. In this grammar the range a-z indicates terminals that represent variable names. A variable name consists of only one letter. The non-terminal S is the start symbol. S-TV; V-C, VIC T-float C-a-z We want to design an LR parser for this grammar. Create a complete parsing DFA, showing the closure for all states including the parsing marker in every rule, and transitions between the states. You can use the symbol @ as the parsing marker. States need to be numbered or named. You may write all required information in a table instead of drawing a DFA. There is no need to add $ at the end of start rule since there

C++ for Engineers and Scientists

4th Edition

ISBN:9781133187844

Author:Bronson, Gary J.

Publisher:Bronson, Gary J.

Chapter12: Adding Functionality To Your Classes

Section12.5: Virtual Functions

Problem 2E

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2. A piece of declaration code in C programming language is as follows: typedef struct { int a, b; } CELL, *PCELL; CELL foo[100]; PCELL bar ( int x, CELL y ); Write the type expression for foo and bar. 3. Write an SDT for the following grammar, which can perform type checking. The type of S is the valid type of its body. S -> id := E | if E then S | while E do S | S; S
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In GO LANGUAGE 5. EBNF grammar for a concert calendar · You may assume that the tokens date, time, word and num have already been defined · A concert calendar is a list of concert events, where each event includes: • A date and time • The name of the performing group or artist, optionally followed by "(21+)" if there is a minimum age requirement to see the concert • A pipe (|) character • The name of the venue where the concert will be held, like "Pavilion" or "San Jose Ritz" • A pipe (|) character • The city where the venue is located • The price, possibly followed by a + if there are also more expensive tickets. Examples: "$15", "$30+" Example calendar: Oct 16 8:00 pm Band X | Pavilion | Concord $20+ Oct 21 10:00 pm BYOB (21+) | Club Nouveau | San Leandro $10
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In GO lang 5. EBNF grammar for a concert calendar · You may assume that the tokens date, time, word and num have already been defined · A concert calendar is a list of concert events, where each event includes: • A date and time • The name of the performing group or artist, optionally followed by "(21+)" if there is a minimum age requirement to see the concert • A pipe (|) character • The name of the venue where the concert will be held, like "Pavilion" or "San Jose Ritz" • A pipe (|) character • The city where the venue is located • The price, possibly followed by a + if there are also more expensive tickets. Examples: "$15", "$30+" Example calendar: Oct 16 8:00 pm Band X | Pavilion | Concord $20+ Oct 21 10:00 pm BYOB (21+) | Club Nouveau | San Leandro $10
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Question 4: The following context-free grammar describes part of the syntax of a Pascal-like language. Non- terminals are given in capitals and terminals in lower case. VAR represents a variable name and CONST represents a constant. The productions for ASSN-STMT are not given, as they do not affect the question. PROGRAM - procedure STMT-LIST STMT-LIST- STMT STMT-LIST | STMT do VAR = CONST to CONST begin STMT-LIST end | ASSN-STMT STMT Show the parse tree for the following input procedure do į = 1 to 100 begin ASSN-STMT ASSN-STMT end ASSN-STMT
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11. L= {w|w E (0,1)* and |w| is even} 12. L = {w|w E (0,1)* and |w| is odd} 13.{ a"b"c"d" |n odd, m even }
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