2 * Copyright (c) 2004 Stefan Farfeleder
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
46 assert(ilogb(0) == FP_ILOGB0);
47 assert(ilogb(NAN) == FP_ILOGBNAN);
48 assert(ilogb(INFINITY) == INT_MAX);
49 for (e = DBL_MIN_EXP - DBL_MANT_DIG; e < DBL_MAX_EXP; e++) {
50 snprintf(buf, sizeof(buf), "0x1.p%d", e);
51 d = strtod(buf, &end);
56 printf("ok 1 - ilogb\n");
58 assert(ilogbf(0) == FP_ILOGB0);
59 assert(ilogbf(NAN) == FP_ILOGBNAN);
60 assert(ilogbf(INFINITY) == INT_MAX);
61 for (e = FLT_MIN_EXP - FLT_MANT_DIG; e < FLT_MAX_EXP; e++) {
62 snprintf(buf, sizeof(buf), "0x1.p%d", e);
63 f = strtof(buf, &end);
68 printf("ok 2 - ilogbf\n");
70 assert(ilogbl(0) == FP_ILOGB0);
71 assert(ilogbl(NAN) == FP_ILOGBNAN);
72 assert(ilogbl(INFINITY) == INT_MAX);
73 for (e = LDBL_MIN_EXP - LDBL_MANT_DIG; e < LDBL_MAX_EXP; e++) {
74 snprintf(buf, sizeof(buf), "0x1.p%d", e);
75 ld = strtold(buf, &end);
80 printf("ok 3 - ilogbl\n");