1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 // Since we're implementing all the extensions, 20 // we need to make sure we get all their declarations when we include <math.h>. 21 #define _BSD_SOURCE 22 23 // Some FreeBSD source includes <complex.h> and assumes <math.h> from that. 24 #include <math.h> 25 26 #define __weak_reference(sym,alias) \ 27 __asm__(".weak " #alias); \ 28 __asm__(".equ " #alias ", " #sym) 29 30 #define __strong_reference(sym,aliassym) \ 31 extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym))) 32 33 // digittoint is in BSD's <ctype.h> but not ours. 34 #include <ctype.h> digittoint(char ch)35static inline int digittoint(char ch) { 36 if (!isxdigit(ch)) return -1; 37 return isdigit(ch) ? (ch - '0') : (_tolower(ch) - 'a'); 38 } 39 40 // FreeBSD exports these in <math.h> but we don't. 41 double cospi(double); 42 double sinpi(double); 43