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Recent questions tagged lexical-analysis

0 votes
2 answers
91
Lexical error
In below line is there any lexical error or not if yes then why? int A=123456789;
In below line is there any lexical error or not if yes then why?int A=123456789;
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6 votes
7 answers
92
Type of error
Find the type of error produced by the following C code. main() { in/*comment t x; floa/*comment*/t gate; } Lexical error syntax error both a) and b) None of these
Find the type of error produced by the following C code.main() { in/*comment t x; floa/*comment*/t gate; }Lexical errorsyntax errorboth a) and b) None of these
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4 votes
3 answers
94
doubt
No of token generated? int main() { int ***p; printf("%d",***p); }
No of token generated? int main() { int *p; printf("%d", *p); }
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14 votes
2 answers
96
Tokenization in lexical analysis
Consider the following C program: int main (void) { in/*this is an example*/z; double/*is it an error?*/y; print( “This is simple” ); return 0; } - How many Different tokens are there in the above code.
Consider the following C program: int main (void) { in/*this is an example*/z; double/*is it an error?*/y; print( “This is simple” ); return 0; }- How many Different ...
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1 votes
1 answer
97
the same identifier X is used to represent two distinct variables in the same function in a C program,
The same identifier X is used to represent two distinct variables in the same function in a C program, then which of the following statement is / are TRUE?S1: The lexical...
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0 votes
1 answer
98
lexical analyzer
lexical error is______ 1.an error produced by LA when illegal character is appear 2.an error produced by LA when missing left parenthesis in expression 3.an error produced by scanner when both operator and parenthesis appeared consecutively 4.all of above
lexical error is______1.an error produced by LA when illegal character is appear2.an error produced by LA when missing left parenthesis in expression3.an error produced b...
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4 votes
3 answers
100
lexical analysis
The number of tokens in the following expression is? + * * * < = & > { - + + + } ( >> ) + & &
The number of tokens in the following expression is?+ * * * < = & { - + + + } ( > ) + & &
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1 votes
1 answer
102
Explain??
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15 votes
2 answers
103
GATE CSE 1987 | Question: 1-xvii
Using longer identifiers in a program will necessarily lead to: Somewhat slower compilation A program that is easier to understand An incorrect program None of the above
Using longer identifiers in a program will necessarily lead to:Somewhat slower compilationA program that is easier to understandAn incorrect programNone of the above
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0 votes
2 answers
105
Self made
Which Phase(s) of compiler produce error(s) in the following program? #include<stdio.h> int main() { nit a b ; a = 10; b = 20; printf("%d%d",a,b); return 0; } a) Lexical Analysis b) Syntax Analysis c) Semantic Analysis d) Both a and b
Which Phase(s) of compiler produce error(s) in the following program?#include<stdio.h>int main(){ nit a b ; a = 10; b = 20; printf("%d%d",a,b); ret...
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1 votes
1 answer
106
self
typechecking is done by : 1. lexical analyser 2. syntax analyser 3. semantic analyser 4. ICG
typechecking is done by :1. lexical analyser2. syntax analyser3. semantic analyser4. ICG
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2 votes
1 answer
107
CD
checking whether a variable is defined before use is syntax error or semantic error??
checking whether a variable is defined before use is syntax error or semantic error??
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2 votes
2 answers
108
..
Consider the following C program: int main (void) { in/*this is an example*/z; double/*is it an error?*/y; print( “This is simple” ); return 0; } What is the kind of error produced in above code?
Consider the following C program:int main (void) { in/*this is an example*/z; double/*is it an error?*/y; print( “This is simple” ); return 0; }What is the kind of er...
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6 votes
3 answers
112
UGC NET CSE | June 2010 | Part 2 | Question: 35
Which of the following is used for grouping of characters into tokens (in a computer) ? A parser Code optimizer Code generator Scanner
Which of the following is used for grouping of characters into tokens (in a computer) ?A parserCode optimizerCode generatorScanner
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2 votes
2 answers
114
compiler
In a two pass compiler, during the first pass: (A) user defined address symbols are correlated with their binary equivalent (B) the syntax of the statement is checked and mistakes, if any, are listed (C) object program is generated (D) semantic of the source program is elucidated.
In a two pass compiler, during the first pass:(A) user defined address symbols are correlated with their binary equivalent(B) the syntax of the statement is checked and m...
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0 votes
1 answer
115
Token
What is token and how use it?
What is token and how use it?
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2 votes
2 answers
116
Interview Question
Can any one Write A C Program to print "ACCEPT" if the string has the pattern 0*1* + 1*0* otherwise "REJECT"
Can any one Write A C Program to print "ACCEPT" if the string has the pattern0*1* + 1*0*otherwise "REJECT"
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8 votes
1 answer
117
UGC NET CSE | December 2014 | Part 3 | Question: 20
How many tokens will be generated by the scanner for the following statement ? $x = x ∗ (a + b) - 5$; $12$ $11$ $10$ $07$
How many tokens will be generated by the scanner for the following statement ?$x = x ∗ (a + b) - 5$;$12$$11$$10$$07$
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0 votes
1 answer
118
tokens
which of following symbols made as token by depending on next symbol? a=b>c<d#
which of following symbols made as token by depending on next symbol?a=b>c<d#
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0 votes
1 answer
119
Compile time error do not include:
Compile time error do not include: A. Lexical error B. Syntactic error C. Semantic error D. Logical error What is the answer? What are these errors? please explain with an example. Thanks in advance
Compile time error do not include:A. Lexical errorB. Syntactic errorC. Semantic errorD. Logical errorWhat is the answer?What are these errors?please explain with an examp...
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0 votes
1 answer
120
Compiler Design Question
Recognition of basic syntactic constructs through reductions, this task is performed by (A) Lexical analysis (B) Syntax analysis (C) Semantic analysis (D) Structure analysis
Recognition of basic syntactic constructs through reductions, this task is performed by (A) Lexical analysis (B) Syntax ana...
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