Lex help - Segmentation Fault

[gunner_uk2000]

I'm using Lex to do lexical analysis, in the below code when it gets to returning 1 (on the EOF rule), it quits with a segmentation fault.

Any idea whats causing this?

I don't actually need the 1 value, i just need the program generated to exit the subroute, keeping the two arrays in memory so they can be accessed by my parsing program.

any ideas?

thanks.

%{
#include <math.h>
#include <stdio.h>

/* codes for the different tokens */
#define MYEOF 0
#define IDENTIFIER 1
#define NUMBER 2
#define INTEGER 3
#define CHAR 4


int input[64]; /* buffer for holding the input */

char *input_value[64];

int count = 0; /*int to point to the next array location to be writen to*/

void Set_Arrays(int token, char *Value);

%}

%%

"int"			{Set_Arrays(INTEGER, yytext);}
"char"			{Set_Arrays(CHAR, yytext);}

"EOF"                   {Set_Arrays(MYEOF, yytext); return 1;}

[0-9]+			{Set_Arrays(NUMBER, yytext);}
[a-zA-Z][0-9a-zA-Z]*	{Set_Arrays(IDENTIFIER, yytext);}
"("			{Set_Arrays('(', yytext);}
")"			{Set_Arrays(')', yytext);}

"+"			{Set_Arrays('+', yytext);}
"-"			{Set_Arrays('-', yytext);}
"*"			{Set_Arrays('*', yytext);}
"/"			{Set_Arrays('/', yytext);}
"="			{Set_Arrays('=', yytext);}
";"			{Set_Arrays(';', yytext);}
"{"			{Set_Arrays('{', yytext);}
"}"			{Set_Arrays('}', yytext);}

[ \t\n]+		{/* eat up white space */}

.			{printf("Unrecognized character: %s\n", yytext);}

%%

void Set_Arrays(int token, char *value){
     input[count] = token;
     input_value[count] = value;
     printf("Tokeen = %d \n", input[count]);
     printf("Value = %s \n", input_value[count]);
     count++;
     
}


yywrap() {} /* For Linux compatibility */

[rockytriton]

is that C code? I don't think it will compile, maybe there's a problem with the formatting.

[dwks]

it quits with a segmentation fault.

I think it compiles. Or do you mean the compiler quits with a seg fault?

I think the file gets pre-parsed by Lex, whatever that is, which turns it into valid C code.

Or are you using digraphs? No, even then I don't think that would compile.