1/*
2 * Copyright (c) 2015 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
20 * THE SOFTWARE.
21 */
22
23#if __CLC_FPSIZE == 32
24#define MIN_CONSTANT 0x1.fffffep-1f
25#else
26#define MIN_CONSTANT 0x1.fffffffffffffp-1
27#endif
28
29_CLC_OVERLOAD _CLC_DEF __CLC_GENTYPE fract(__CLC_GENTYPE x, private __CLC_GENTYPE *iptr) {
30  *iptr = floor(x);
31  __CLC_GENTYPE r = fmin(x - *iptr, MIN_CONSTANT);
32  r = isinf(x) ? 0.0f : r;
33  r = isnan(x) ? x : r;
34  return r;
35}
36
37
38#define FRACT_DEF(addrspace) \
39  _CLC_OVERLOAD _CLC_DEF __CLC_GENTYPE fract(__CLC_GENTYPE x, addrspace __CLC_GENTYPE *iptr) { \
40    __CLC_GENTYPE private_iptr; \
41    __CLC_GENTYPE ret = fract(x, &private_iptr); \
42    *iptr = private_iptr; \
43    return ret; \
44 }
45
46FRACT_DEF(local);
47FRACT_DEF(global);
48
49#undef MIN_CONSTANT
50