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/*
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright © 2025 Keith Packard
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
load "test-float.5c"
import Complex;
typedef union {
complex c;
void i;
void n;
} complex_result_t;
complex_result_t complex_nan = { .n = ◊ };
complex_result_t complex_inf = { .i = ◊ };
complex_result_t complex_result(complex z)
{
return (complex_result_t) { .c = z };
}
complex
complex32(complex x)
{
return imprecise_arg(x, 24);
}
complex
complex64(complex x)
{
return imprecise_arg(x, 53);
}
complex
complex80(complex x)
{
return imprecise_arg(x, 64);
}
complex
complex128(complex x)
{
return imprecise_arg(x, 113);
}
complex [](complex) complex_convs = { complex32, complex64, complex80, complex128 };
void
print_one_complex(complex z, int i)
{
print_one_real(creal(z), i);
printf(", ");
print_one_real(cimag(z), i);
}
void
print_one_complex_result(complex_result_t z, int i)
{
union switch (z) {
case c c:
print_one_complex(c, i);
break;
case i:
printf("INFINITY, INFINITY");
break;
case n:
printf("NAN, NAN");
break;
}
}
void
print_complex(complex[4] x, complex_result_t[4] y)
{
printf("{ .x = COMPLEX(");
for (int i = 0; i < 4; i++) {
if (i > 0)
printf(", ");
print_one_complex(x[i], i);
}
printf("), .y = COMPLEX(");
for (int i = 0; i < 4; i++) {
if (i > 0)
printf(", ");
print_one_complex_result(y[i], i);
}
printf(") },\n");
}
void
compute_complex_one(complex x, complex(complex) f)
{
complex[4] xp;
complex_result_t[4] yp;
for (int i = 0; i < 4; i++) {
xp[i] = complex_convs[i](x);
try {
try {
yp[i] = complex_result(complex_convs[i](f(imprecise(xp[i], prec))));
} catch divide_by_zero(real x, real y) {
if (x == 0)
raise nan();
raise infinity(x);
} catch invalid_argument(string error, int i, poly v) {
raise nan();
}
} catch infinity(real v) {
yp[i] = complex_inf;
} catch nan() {
yp[i] = complex_nan;
}
}
print_complex(xp, yp);
}
void
print_complex_complex(complex[4] x1, complex[4] x2, complex_result_t[4] y)
{
printf("{ .x1 = COMPLEX(");
for (int i = 0; i < 4; i++) {
if (i > 0)
printf(", ");
print_one_complex(x1[i], i);
}
printf("), .x2 = COMPLEX(");
for (int i = 0; i < 4; i++) {
if (i > 0)
printf(", ");
print_one_complex(x2[i], i);
}
printf("), .y = COMPLEX(");
for (int i = 0; i < 4; i++) {
if (i > 0)
printf(", ");
print_one_complex_result(y[i], i);
}
printf(") },\n");
}
void
compute_complex_complex(complex x1, complex x2, complex(complex, complex) f)
{
complex[4] x1p;
complex[4] x2p;
complex_result_t[4] yp;
for (int i = 0; i < 4; i++) {
x1p[i] = complex_convs[i](x1);
x2p[i] = complex_convs[i](x2);
try {
try {
yp[i] = complex_result(complex_convs[i](f(imprecise(x1p[i], prec),
imprecise(x2p[i], prec))));
} catch divide_by_zero(real x, real y) {
if (x == 0)
raise nan();
raise infinity(x);
} catch invalid_argument(string error, int i, poly v) {
raise nan();
}
} catch infinity(real v) {
yp[i] = complex_inf;
} catch nan() {
yp[i] = complex_nan;
}
}
print_complex_complex(x1p, x2p, yp);
}
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