1 /*
2 * Copyright (C) 2013 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 // Contains an implementation of all stdlib functions missing from bionic.
30 //
31 // TODO(digit): Make these work.
32
33 #include <inttypes.h>
34 #include <stdlib.h>
35 #include <assert.h>
36
strtold(const char * nptr,char ** endptr)37 long double strtold(const char* nptr, char** endptr) {
38 //FIXME: Although in Android long double is the same as double, can we borrow stdtod?
39 return strtod(nptr, endptr);
40 }
41
imaxabs(intmax_t j)42 intmax_t imaxabs(intmax_t j)
43 {
44 return (j < 0 ? -j : j);
45 }
46
imaxdiv(intmax_t numer,intmax_t denom)47 imaxdiv_t imaxdiv(intmax_t numer, intmax_t denom)
48 {
49 imaxdiv_t retval;
50
51 retval.quot = numer / denom;
52 retval.rem = numer % denom;
53 if (numer >= 0 && retval.rem < 0) {
54 retval.quot++;
55 retval.rem -= denom;
56 }
57 return (retval);
58 }
59