CODEWITHSUNDEEP
ccompiler-constructionlexical-analysis
Y.E.P
Y.E.P

Reputation: 1207

For this simple program what will be the output just after lexcial analysis?

For a simple C program like :

#include<stdio.h>
int main(){
   int first,second,sum;
   first = 10;
   second = 20;
   sum = first + second;
   printf("%d\n",sum);
}

what will be the output after the first phase of compiler which is Lexcial Analysis ?

Upvotes: 2

Views: 209

Answers (2)

user207421
user207421

Reputation: 310907

There is no output. The first phase may be lexical analysis but that doesn't mean it is an entire distinct pass with an output which forms the input to the next stage. The parser calls the lexical analyser via function calls.

Upvotes: 1

nneonneo
nneonneo

Reputation: 179422

Lexical analysis produces a stream of tokens. Ignoring the preprocessor for now, the output would be something like

KEYWORD int
IDENTIFIER main
LPAREN
RPAREN
LBRACE
KEYWORD int
IDENTIFIER first
COMMA
...

Obviously, the actual output is dependent on your compiler.

Upvotes: 4

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