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https://github.com/Z3Prover/z3
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89 lines
1.8 KiB
C++
89 lines
1.8 KiB
C++
/*++
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Copyright (c) 2012 Microsoft Corporation
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Module Name:
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mpf.cpp
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Abstract:
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mpf repros...
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Author:
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Leonardo de Moura (leonardo) 2012-08-21.
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Revision History:
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--*/
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#include"mpf.h"
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#include"f2n.h"
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static void bug_set_int() {
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mpf_manager fm;
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scoped_mpf a(fm);
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fm.set(a, 11, 53, 3);
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SASSERT(fm.to_double(a) == 3.0);
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fm.set(a, 11, 53, 0);
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SASSERT(fm.to_double(a) == 0.0);
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fm.set(a, 11, 53, -1);
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SASSERT(fm.to_double(a) == -1.0);
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fm.set(a, 11, 53, INT_MAX);
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SASSERT(fm.to_double(a) == (double)INT_MAX);
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fm.set(a, 11, 53, INT_MIN);
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SASSERT(fm.to_double(a) == (double)INT_MIN);
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fm.set(a, 8, 24, 3);
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SASSERT(fm.to_float(a) == 3.0);
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SASSERT(fm.to_double(a) == 3.0);
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fm.set(a, 8, 24, 0);
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SASSERT(fm.to_float(a) == 0.0);
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SASSERT(fm.to_double(a) == 0.0);
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fm.set(a, 8, 24, -1);
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SASSERT(fm.to_float(a) == -1.0);
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SASSERT(fm.to_double(a) == -1.0);
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fm.set(a, 8, 24, INT_MIN);
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SASSERT(fm.to_float(a) == (float)INT_MIN);
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// CMW: This one depends on the rounding mode, but fm.set(..., int) doesn't have one.
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// fm.set(a, 8, 24, INT_MAX);
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// SASSERT(fm.to_float(a) == (float)INT_MAX);
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}
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static void bug_set_double() {
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mpf_manager fm;
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scoped_mpf a(fm);
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fm.set(a, 11, 53, 2.5);
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SASSERT(fm.to_double(a) == 2.5);
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fm.set(a, 11, 53, -42.25);
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SASSERT(fm.to_double(a) == -42.25);
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fm.set(a, 8, 24, (double)2.5);
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SASSERT(fm.to_double(a) == 2.5);
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fm.set(a, 8, 24, (double)-42.25);
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SASSERT(fm.to_double(a) == -42.25);
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fm.set(a, 8, 24, (float)2.5);
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SASSERT(fm.to_float(a) == 2.5);
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fm.set(a, 8, 24, (float)-42.25);
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SASSERT(fm.to_float(a) == -42.25);
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}
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void tst_mpf() {
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enable_trace("mpf_mul_bug");
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bug_set_int();
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bug_set_double();
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}
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