Sams Teach Yourself C in 21 Days

In Review 623

145: if(fseek( fp, 0, SEEK_SET ) == 0)

146: {

147: fread(&rec, 1, sizeof(rec), fp);

148: while(!feof(fp))

149: {

150: fprintf(stdout,”\n\t%s, %s %c %s”, rec.lname,

151: rec.fname, rec.mname[0],

152: rec.phone);

153: num_of_recs++;

154: fread(&rec, 1, sizeof(rec), fp);

155: }

156: fprintf(stdout, “\n\nTotal number of records: %d”,

157: num_of_recs);

158: fprintf(stdout, “\n\n* * * End of Report * * *”);

159: }

160: else

161: fprintf( stderr, “\n\n*** ERROR WITH REPORT ***\n”);

162: }

163:

164: /**************************************************

165: * Function: continue_function()

166: **************************************************/

167:

168: int continue_function( void )

169: {

170: char ch, buf[20];

171: do

172: {

173: printf(“\n\nDo you wish to enter another? (Y)es/(N)o “);

174: gets(buf);

175: ch = *buf;

176: } while( strchr( “NnYy”, ch) == NULL );

177:

178: if(ch == ‘n’ || ch == ‘N’)

179: return(NO);

180: else

181: return(YES);

182: }

183:

184: /**********************************************************

185: * Function: display_usage()

186: ***********************************************************/

187:

188: void display_usage( char *filename )

189: {

190: printf(“\n\nUSAGE: %s filename”, filename );

191: printf(“\n\n where filename is a file to store people\’s names”);

192: printf(“\n and phone numbers.\n\n”);

193: }

194:

195: /**********************************************

LISTINGR3.1 continued

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