// File: C_ACM_input_ex.c
// Date: 10/22/2001

// Sample program showing how to use the routines in input.c
// Assume the input file is "input.in" and has the following format.
//
// There are a number of cases, beginning with a number defining how
// many stations are part of that case. Each station line has a string
// label, a letter, integer x & y coordinates, and a float distance. One
// of the stations also has a trailing 1, denoting that it is the
// start station for this case.
//
// 4
// Station1 A 12 34 2.4
// Station2 B 43 56 2.1
// Station3 C 65 4 2.3 1
// Station4 D 8 23 1.0
// 0

#include "input.c"

#ifndef M_PI
#define M_PI            3.14159265358979323846
#endif

#define LINE_LEN 100

int main( int argc, char *argv[] )  {
  char line[LINE_LEN+1];
  char stationName[20];
  int stations, x, y;
  int startStation = 0;
  char stationLetter;
  float dist;

  FILE *fp = fopen( "input.in", "r" );
  if( fp == NULL )  {
    fprintf( stderr, "Could not open input file.\n" );
    exit( -1 );
  }

  printf( "Testing macros...\n" );
  printf( "  abs( -100 ): %d\n", abs( -100 ) );
  printf( "  min( 50.1, 100 ): %.1f\n", min( 50.1, 100 ) );
  printf( "  max( 50.1, 50.2 ): %.1f\n", max( 50.1, 50.2 ) );
  printf( "  deg( %f ): %.1f\n", M_PI, deg( M_PI ) );
  printf( "  rad( 180.0 ): %8.6f\n", rad( 180.0 ) );
  printf( "  Dist2d (should be 5): %d\n",
          ( int )dist2d( 0.0, 0.0, 4.0, 3.0 ) );
  printf( "  Dist3d (should be 5): %d\n",
          ( int )dist3d( 0.0, 0.0, 0.0, 4.0, 3.0, 0.0 ) );
  printf( "  bit_set(  3, 0 ) (should be 1): %d\n",
          ( int )bit_set( 3, 0 ) );
  printf( "  bit_set(  2, 1 ) (should be 1): %d\n",
          ( int )bit_set( 2, 1 ) );
  printf( "  bit_set( 54, 0 ) (should be 0): %d\n",
          ( int )bit_set( 54, 0 ) );
  printf( "  bit_set( set_bit( 0, 4 ), 4 ) (should be 1): %d\n",
          bit_set( set_bit( 0, 4 ), 4 ) );
  printf( "  bit_set( clear_bit( 0, 4 ), 4 ) (should be 0): %d\n",
          bit_set( clear_bit( 0, 4 ), 4 ) );
  printf( "  bit_set( toggle_bit( 6, 2 ), 2 ) (should be 0): %d\n\n",
          bit_set( toggle_bit( 6, 2 ), 2 ) );

  printf( "Parsing input file...\n" );
  getLine( fp, line, LINE_LEN );
  getInt( stations );
  for( int i = 0; i < stations; i++ )  {
    if( stations == 0 )  {
      printf( "Done with all cases.\n" );
      break;
    }
    getLine( fp, line, LINE_LEN );
    getStr( stationName );
    getChar( stationLetter );
    getInt( x );
    getInt( y );
    getFloat( dist );
    printf( "Case %d: %s %c %d %d %.1f",
            i, stationName, stationLetter, x, y, dist );
    if( getInt( startStation ) )  {
      printf( " (Start)" );
    }
    printf( "\n" );
  }
}