Register

Recent questions tagged lexical-analysis

1 1 vote
1 answers 1 answer
1.4k
1.4k views
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...
User Avatar
0 0 votes
1 1 answer
1.1k
1.1k views
lexical analyzer
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...
User Avatar
1 1 vote
1 1 answer
651
651 views
error while compilation
Consider the following C program : # includemain()Iint }x=10,y=12char * a;a=&x;x=1xab;printf("%d %d",x, * a);I Which of the following type of error (earliest phase) i...
User Avatar
4 4 votes
3 3 answers
3.0k
3.0k views
lexical analysis
The number of tokens in the following expression is?+ * * * < = & { - + + + } ( > ) + & &
User Avatar
0 0 votes
1 answers 1 answer
510
510 views
ME-FST2-Q33
I think none correct..anybody please check
User Avatar
1 1 vote
2 2 answers
536
536 views
Explain??
1. The advantage of panic mode of error recovery is thatit is simple to implementit is very effectiveit never gets into infinite loopnone of the above
User Avatar
30 30 votes
3 answers 3 answers
8.3k
8.3k views
GATE CSE 1987 | Question: 1-xvii
Using longer identifiers in a program will necessarily lead to:Somewhat slower compilationA program that is easier to understandAn incorrect programNone of the above
User Avatar
28 28 votes
5 answers 5 answers
9.7k
9.7k views
GATE CSE 1987 | Question: 1-xi
In a compiler the module that checks every character of the source text is called:The code generator.The code optimiser.The lexical analyser.The syntax analyser.
User Avatar
2 2 votes
1 1 answer
2.2k
2.2k views
Self Doubt
I came across few Compiler Design Doubts, Please provide your cent.$Q_1 :$ Can lexical analyser detect some/any type of errors?I think yes, because while scanning to iden...
User Avatar
0 0 votes
3 3 answers
1.7k
1.7k views
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); ret...
User Avatar
1 1 vote
1 answers 1 answer
558
558 views
self
typechecking is done by :1. lexical analyser2. syntax analyser3. semantic analyser4. ICG
User Avatar
2 2 votes
1 1 answer
901
901 views
CD
checking whether a variable is defined before use is syntax error or semantic error??
User Avatar
2 2 votes
3 3 answers
740
740 views
..
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 ...
User Avatar
1 1 vote
2 2 answers
1.6k
1.6k views
..
Consider the following three statements:S1: The lexical analyzer detects an error when it discovers that an input prefix does not fit the specification of any token class...
User Avatar
1 1 vote
2 2 answers
906
906 views
Test series
Consider the following statements:S1: Writing "int main" as "intmain" in a C program shall result in lexical error.S2: Writing "int main" as "intmain" in a C program shal...
User Avatar
0 0 votes
1 1 answer
1.1k
1.1k views
Laxical Analysis
cosider the following normal statement:DO 5 I =1.25also consider the following FORTRAN 90 statement:D0 5 I = 1.25the difference between numbers of tokens in both the stat...
User Avatar
6 6 votes
3 3 answers
9.5k
9.5k views
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 parserCode optimizerCode generatorScanner
User Avatar
1 1 vote
1 1 answer
893
893 views
Is 1.02e+4 is a token in C program...??
User Avatar
2 2 votes
2 2 answers
1.5k
1.5k views
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 m...
User Avatar
0 0 votes
1 1 answer
850
850 views
Token
What is token and how use it?
User Avatar
2 2 votes
2 2 answers
1.1k
1.1k views
Interview Question
Can any one Write A C Program to print "ACCEPT" if the string has the pattern0*1* + 1*0*otherwise "REJECT"
User Avatar
8 8 votes
1 answers 1 answer
5.2k
5.2k views
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$
User Avatar
0 0 votes
1 1 answer
1.1k
1.1k views
tokens
which of following symbols made as token by depending on next symbol?a=b>c<d#
User Avatar
0 0 votes
1 answers 1 answer
1.6k
1.6k views
Compile time error do not include:
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...
User Avatar
0 0 votes
1 answers 1 answer
1.5k
1.5k views
Compiler Design Question
Recognition of basic syntactic constructs through reductions, this task is performed by (A) Lexical analysis (B) Syntax ana...
User Avatar
0 0 votes
1 1 answer
1.2k
1.2k views
Compiler Design
A macro definition consists of ...
User Avatar
1 1 vote
1 answers 1 answer
1.3k
1.3k views
Compiler Design
1 .Which of these is not a part of Synthesis phase .Please states the reason also Along with your answer.(A) Obtain machine code corresponding to the mnemonic from the ...
User Avatar
1 1 vote
1 1 answer
2.1k
2.1k views
Lexical analysis
Which of the following statement is true For lexical analysis ?a) Simplify the phasesb) Compiler effeciency improvedc) Portability is encahncedd)compiler work faster
User Avatar
0 0 votes
1 1 answer
752
752 views
ICG
In backpatching , what does the N mean in semantic rule for syntax rule ?1.E1 or NE22.E1 and NE23.Not E1a) It refer to the index of the first statement of second expres...
User Avatar
10 10 votes
2 answers 2 answers
2.1k
2.1k views
Error during compilation of code..
a = 1+1+1+ 1+1+1 1+1;as far as i think, it will pass the lexical phase.. it should b syntax error.. correct ??
User Avatar
Page: