Home | History | Annotate | Download | only in src
      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 
     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 
     42 intmax_t imaxabs(intmax_t j)
     43 {
     44   return (j < 0 ? -j : j);
     45 }
     46 
     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