Hi All here is a problem I just can't understand! I don't really want
a work around I just want this to plainly work or atleast
explained.... Thanks in advance....
Problem: strcmp(st[i], s) it runs with no problem.... when I put this
in an if statement or set a integer equal this it makes the program
crash...
here is the code, last function is were it dies...
#include <stdio.h>
#include <string.h>
enum {
MAX_LINES = 20,
MAX_LINE_LEN = 80
};
char buff[ MAX_LINE_LEN ];
char* st[ MAX_LINES ] = {NULL};
int numLines = 0;
/* prompts user for search string, stores it in s */
/* s must be of sufficient size. */
void getInput( char *s );
/* returns TRUE if s appears in table */
int inTable( const char *s );
int main( int argc, char *argv[] )
{
FILE *fin = NULL;
/* load table */
if( argc < 2 )
{
fprintf( stdout, "\nOkay, you didn't list an input
file.\n" );
return -1;
#if 0 // this is the code that should replace the return. Not
tested
fprintf( stdout,
"So, type entries here, one per line. (ctrl-D
to end)\$
fin = stdin;
#endif
}
else
{
fin = fopen( argv[1], "r" );
if( fin==NULL )
{
fprintf( stderr, "\nCan't open %s for
reading. Exiting$
argv[1] );
return -1;
}
}
while( numLines<MAX_LINES && fgets( buff, MAX_LINE_LEN, fin ))
{
++numLines;
st[ numLines ] = strdup( buff );
}
fclose( fin );
/* get target */
getInput( buff );
if( inTable( buff ))
printf( "\nYep, got one of those.\n" );
else
printf( "\nSorry, check back next Sat.\n" );
return 0;
}
void getInput( char *s )
{
printf( "\nEnter a string to search for =" );
fgets( s, MAX_LINE_LEN, stdin );
}
int inTable( const char *s )
{
int i;
for( i=0; i<numLines; ++i )
{
printf("Values s=%s",st[i]);
if( strcmp(st[i], s) == 0 )
return 1;
}
return 0;
}
