128 lines
2.8 KiB
C
128 lines
2.8 KiB
C
/*
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*
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* Copyright (c) International Business Machines Corp., 2002
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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* the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/* 01/02/2003 Port to LTP avenkat@us.ibm.com */
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/* 06/30/2001 Port to Linux nsharoff@us.ibm.com */
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/*
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* NAME
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* scalb
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*
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* CALLS
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* nextafter(3C)
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*
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* ALGORITHM
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* Check results from the above functions against expected values.
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*
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* RESTRICTIONS
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* Checks for basic functionality, nothing fancy
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*/
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#include <errno.h>
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#include <math.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "test.h"
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#define FAILED 0
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#define PASSED 1
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char *TCID = "nextafter01";
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int local_flag = PASSED;
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int block_number;
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FILE *temp;
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int TST_TOTAL = 1;
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void setup();
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void blenter();
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void blexit();
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/*--------------------------------------------------------------*/
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int main()
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{
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double answer;
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double check; /* tmp variable */
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setup(); /* temp file is now open */
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/*--------------------------------------------------------------*/
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blenter();
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answer = nextafter(1.0, 1.1);
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check = (answer + 1.0) / 2;
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if ((check != answer) && ((float)check != 1.0)) {
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fprintf(temp, "nextafter returned %e, expected answer or 1.0\n",
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answer);
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local_flag = FAILED;
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}
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blexit();
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/*--------------------------------------------------------------*/
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blenter();
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answer = nextafter(1.0, 0.9);
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if ((check != answer) && (check != 1.0)) {
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fprintf(temp, "nextafter returned %e, expected answer or 1.0\n",
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answer);
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local_flag = FAILED;
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}
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blexit();
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/*--------------------------------------------------------------*/
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blenter();
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answer = nextafter(1.0, 1.0);
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if (answer != 1.0) {
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fprintf(temp, "nextafter 3 returned %e, expected 1.0\n",
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answer);
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local_flag = FAILED;
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}
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blexit();
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/*--------------------------------------------------------------*/
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tst_exit();
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}
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/*--------------------------------------------------------------*/
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/***** ***** LTP Port *****/
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/* FUNCTIONS */
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void setup()
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{
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temp = stderr;
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}
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void blenter()
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{
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local_flag = PASSED;
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}
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void blexit()
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{
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if (local_flag == PASSED)
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tst_resm(TPASS, "Test passed");
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else
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tst_resm(TFAIL, "Test failed");
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}
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/***** ***** *****/
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