36 lines
892 B
C++
36 lines
892 B
C++
/*
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Copyright (c) 2013 Microsoft Corporation. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Author: Soonho Kong
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*/
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#include <cmath>
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#include "util/thread.h"
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#include "util/numerics/numeric_traits.h"
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#include "util/numerics/float.h"
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namespace lean {
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MK_THREAD_LOCAL_GET_DEF(mpfr_rnd_t, get_g_rnd);
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void set_float_rnd(bool plus_inf) {
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get_g_rnd() = plus_inf ? MPFR_RNDU : MPFR_RNDD;
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}
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mpfr_rnd_t get_float_rnd() {
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return get_g_rnd();
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}
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void float_power(float & v, unsigned k) { v = std::pow(v, k); }
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void float_abs(float & v) { v = std::abs(v); }
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void float_ceil(float & v) { v = std::ceil(v); }
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void float_floor(float & v) { v = std::floor(v); }
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static float g_zero = 0.0;
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float const & numeric_traits<float>::zero() {
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return g_zero;
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}
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static float g_one = 1.0;
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float const & numeric_traits<float>::one() {
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return g_one;
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}
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};
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