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      1 /*
      2  * Copyright (C) Bull S.A. 2001
      3  * Copyright (c) International Business Machines  Corp., 2001
      4  *
      5  *   This program is free software;  you can redistribute it and/or modify
      6  *   it under the terms of the GNU General Public License as published by
      7  *   the Free Software Foundation; either version 2 of the License, or
      8  *   (at your option) any later version.
      9  *
     10  *   This program is distributed in the hope that it will be useful,
     11  *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
     12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
     13  *   the GNU General Public License for more details.
     14  *
     15  *   You should have received a copy of the GNU General Public License
     16  *   along with this program;  if not, write to the Free Software
     17  *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
     18  */
     19 
     20 /******************************************************************************/
     21 /*                                                                            */
     22 /* Dec-03-2001  Created: Jacky Malcles & Jean Noel Cordenner                  */
     23 /*              These tests are adapted from AIX float PVT tests.             */
     24 /*                                                                            */
     25 /******************************************************************************/
     26 #include 	<float.h>
     27 #include 	<stdio.h>
     28 #include 	<stdlib.h>
     29 #include 	<string.h>
     30 #include 	<errno.h>
     31 #include        <limits.h>
     32 #include        <unistd.h>
     33 #include        <fcntl.h>
     34 #include        <errno.h>
     35 #include        <sys/signal.h>
     36 #include        <math.h>
     37 
     38 #define M_PIl	3.1415926535897932384626433832795029L
     39 
     40 static int create_Result_file(void)
     41 {
     42 
     43 	int i, nbVal;
     44 	double tabRatan[20000], Inc;
     45 	char *F_name;
     46 	int fp;
     47 
     48 	F_name = "ratan";
     49 	nbVal = 20000;
     50 
     51 	Inc = 2 / nbVal;
     52 
     53 	for (i = 0; i < nbVal; i++)
     54 		tabRatan[i] = atan((Inc * i) - 1);
     55 
     56 	fp = open(F_name, O_RDWR | O_CREAT | O_TRUNC, 0777);
     57 	if (!fp) {
     58 		printf("error opening file");
     59 		close(fp);
     60 		return -1;
     61 	} else {
     62 		for (i = 0; i < nbVal; i++) {
     63 			write(fp, &tabRatan[i], sizeof(double));
     64 		}
     65 
     66 		close(fp);
     67 		return 0;
     68 	}
     69 }
     70 
     71 static int create_Data_file(void)
     72 {
     73 	int i, nbVal;
     74 	double tabDatan[20000], Inc;
     75 	char *F_name;
     76 	int fp;
     77 
     78 	F_name = "datan";
     79 	nbVal = 20000;
     80 
     81 	Inc = 2 / nbVal;
     82 
     83 	for (i = 0; i < nbVal; i++)
     84 		tabDatan[i] = (Inc * i) - 1;
     85 
     86 	fp = open(F_name, O_RDWR | O_CREAT | O_TRUNC, 0777);
     87 	if (!fp) {
     88 		printf("error opening file");
     89 		close(fp);
     90 		return -1;
     91 	} else {
     92 		for (i = 0; i < nbVal; i++) {
     93 			write(fp, &tabDatan[i], sizeof(double));
     94 		}
     95 		close(fp);
     96 		return 0;
     97 	}
     98 }
     99 
    100 int main(int argc, char *argv[])
    101 {
    102 
    103 	if (argc > 1) {
    104 		switch (atoi(argv[1])) {
    105 		case 1:
    106 			if (create_Data_file() == 0)
    107 				printf("Data file created\n");
    108 			else
    109 				printf
    110 				    ("problem during atan data file creation\n");
    111 			break;
    112 
    113 		case 2:
    114 			if (create_Result_file() == 0)
    115 				printf("Result file created\n");
    116 			else
    117 				printf
    118 				    ("problem during atan result file creation\n");
    119 			break;
    120 		default:
    121 			printf("Bad arglist code for: '%s'\n", argv[0]);
    122 			return -1;
    123 			break;
    124 		}
    125 	} else {
    126 		if (create_Data_file() != 0)
    127 			printf("problem during atan data file creation\n");
    128 		if (create_Result_file() != 0)
    129 			printf("problem during atan result file creation\n");
    130 	}
    131 
    132 	return (0);
    133 
    134 }
    135