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-rw-r--r--src/3rdparty/v8/test/cctest/test-fast-dtoa.cc268
1 files changed, 0 insertions, 268 deletions
diff --git a/src/3rdparty/v8/test/cctest/test-fast-dtoa.cc b/src/3rdparty/v8/test/cctest/test-fast-dtoa.cc
deleted file mode 100644
index d311713..0000000
--- a/src/3rdparty/v8/test/cctest/test-fast-dtoa.cc
+++ /dev/null
@@ -1,268 +0,0 @@
-// Copyright 2006-2008 the V8 project authors. All rights reserved.
-
-#include <stdlib.h>
-
-#include "v8.h"
-
-#include "platform.h"
-#include "cctest.h"
-#include "diy-fp.h"
-#include "double.h"
-#include "fast-dtoa.h"
-#include "gay-precision.h"
-#include "gay-shortest.h"
-
-using namespace v8::internal;
-
-static const int kBufferSize = 100;
-
-
-// Removes trailing '0' digits.
-static void TrimRepresentation(Vector<char> representation) {
- int len = StrLength(representation.start());
- int i;
- for (i = len - 1; i >= 0; --i) {
- if (representation[i] != '0') break;
- }
- representation[i + 1] = '\0';
-}
-
-
-TEST(FastDtoaShortestVariousDoubles) {
- char buffer_container[kBufferSize];
- Vector<char> buffer(buffer_container, kBufferSize);
- int length;
- int point;
- int status;
-
- double min_double = 5e-324;
- status = FastDtoa(min_double, FAST_DTOA_SHORTEST, 0,
- buffer, &length, &point);
- CHECK(status);
- CHECK_EQ("5", buffer.start());
- CHECK_EQ(-323, point);
-
- double max_double = 1.7976931348623157e308;
- status = FastDtoa(max_double, FAST_DTOA_SHORTEST, 0,
- buffer, &length, &point);
- CHECK(status);
- CHECK_EQ("17976931348623157", buffer.start());
- CHECK_EQ(309, point);
-
- status = FastDtoa(4294967272.0, FAST_DTOA_SHORTEST, 0,
- buffer, &length, &point);
- CHECK(status);
- CHECK_EQ("4294967272", buffer.start());
- CHECK_EQ(10, point);
-
- status = FastDtoa(4.1855804968213567e298, FAST_DTOA_SHORTEST, 0,
- buffer, &length, &point);
- CHECK(status);
- CHECK_EQ("4185580496821357", buffer.start());
- CHECK_EQ(299, point);
-
- status = FastDtoa(5.5626846462680035e-309, FAST_DTOA_SHORTEST, 0,
- buffer, &length, &point);
- CHECK(status);
- CHECK_EQ("5562684646268003", buffer.start());
- CHECK_EQ(-308, point);
-
- status = FastDtoa(2147483648.0, FAST_DTOA_SHORTEST, 0,
- buffer, &length, &point);
- CHECK(status);
- CHECK_EQ("2147483648", buffer.start());
- CHECK_EQ(10, point);
-
- status = FastDtoa(3.5844466002796428e+298, FAST_DTOA_SHORTEST, 0,
- buffer, &length, &point);
- if (status) { // Not all FastDtoa variants manage to compute this number.
- CHECK_EQ("35844466002796428", buffer.start());
- CHECK_EQ(299, point);
- }
-
- uint64_t smallest_normal64 = V8_2PART_UINT64_C(0x00100000, 00000000);
- double v = Double(smallest_normal64).value();
- status = FastDtoa(v, FAST_DTOA_SHORTEST, 0, buffer, &length, &point);
- if (status) {
- CHECK_EQ("22250738585072014", buffer.start());
- CHECK_EQ(-307, point);
- }
-
- uint64_t largest_denormal64 = V8_2PART_UINT64_C(0x000FFFFF, FFFFFFFF);
- v = Double(largest_denormal64).value();
- status = FastDtoa(v, FAST_DTOA_SHORTEST, 0, buffer, &length, &point);
- if (status) {
- CHECK_EQ("2225073858507201", buffer.start());
- CHECK_EQ(-307, point);
- }
-}
-
-
-TEST(FastDtoaPrecisionVariousDoubles) {
- char buffer_container[kBufferSize];
- Vector<char> buffer(buffer_container, kBufferSize);
- int length;
- int point;
- int status;
-
- status = FastDtoa(1.0, FAST_DTOA_PRECISION, 3, buffer, &length, &point);
- CHECK(status);
- CHECK_GE(3, length);
- TrimRepresentation(buffer);
- CHECK_EQ("1", buffer.start());
- CHECK_EQ(1, point);
-
- status = FastDtoa(1.5, FAST_DTOA_PRECISION, 10, buffer, &length, &point);
- if (status) {
- CHECK_GE(10, length);
- TrimRepresentation(buffer);
- CHECK_EQ("15", buffer.start());
- CHECK_EQ(1, point);
- }
-
- double min_double = 5e-324;
- status = FastDtoa(min_double, FAST_DTOA_PRECISION, 5,
- buffer, &length, &point);
- CHECK(status);
- CHECK_EQ("49407", buffer.start());
- CHECK_EQ(-323, point);
-
- double max_double = 1.7976931348623157e308;
- status = FastDtoa(max_double, FAST_DTOA_PRECISION, 7,
- buffer, &length, &point);
- CHECK(status);
- CHECK_EQ("1797693", buffer.start());
- CHECK_EQ(309, point);
-
- status = FastDtoa(4294967272.0, FAST_DTOA_PRECISION, 14,
- buffer, &length, &point);
- if (status) {
- CHECK_GE(14, length);
- TrimRepresentation(buffer);
- CHECK_EQ("4294967272", buffer.start());
- CHECK_EQ(10, point);
- }
-
- status = FastDtoa(4.1855804968213567e298, FAST_DTOA_PRECISION, 17,
- buffer, &length, &point);
- CHECK(status);
- CHECK_EQ("41855804968213567", buffer.start());
- CHECK_EQ(299, point);
-
- status = FastDtoa(5.5626846462680035e-309, FAST_DTOA_PRECISION, 1,
- buffer, &length, &point);
- CHECK(status);
- CHECK_EQ("6", buffer.start());
- CHECK_EQ(-308, point);
-
- status = FastDtoa(2147483648.0, FAST_DTOA_PRECISION, 5,
- buffer, &length, &point);
- CHECK(status);
- CHECK_EQ("21475", buffer.start());
- CHECK_EQ(10, point);
-
- status = FastDtoa(3.5844466002796428e+298, FAST_DTOA_PRECISION, 10,
- buffer, &length, &point);
- CHECK(status);
- CHECK_GE(10, length);
- TrimRepresentation(buffer);
- CHECK_EQ("35844466", buffer.start());
- CHECK_EQ(299, point);
-
- uint64_t smallest_normal64 = V8_2PART_UINT64_C(0x00100000, 00000000);
- double v = Double(smallest_normal64).value();
- status = FastDtoa(v, FAST_DTOA_PRECISION, 17, buffer, &length, &point);
- CHECK(status);
- CHECK_EQ("22250738585072014", buffer.start());
- CHECK_EQ(-307, point);
-
- uint64_t largest_denormal64 = V8_2PART_UINT64_C(0x000FFFFF, FFFFFFFF);
- v = Double(largest_denormal64).value();
- status = FastDtoa(v, FAST_DTOA_PRECISION, 17, buffer, &length, &point);
- CHECK(status);
- CHECK_GE(20, length);
- TrimRepresentation(buffer);
- CHECK_EQ("22250738585072009", buffer.start());
- CHECK_EQ(-307, point);
-
- v = 3.3161339052167390562200598e-237;
- status = FastDtoa(v, FAST_DTOA_PRECISION, 18, buffer, &length, &point);
- CHECK(status);
- CHECK_EQ("331613390521673906", buffer.start());
- CHECK_EQ(-236, point);
-
- v = 7.9885183916008099497815232e+191;
- status = FastDtoa(v, FAST_DTOA_PRECISION, 4, buffer, &length, &point);
- CHECK(status);
- CHECK_EQ("7989", buffer.start());
- CHECK_EQ(192, point);
-}
-
-
-TEST(FastDtoaGayShortest) {
- char buffer_container[kBufferSize];
- Vector<char> buffer(buffer_container, kBufferSize);
- bool status;
- int length;
- int point;
- int succeeded = 0;
- int total = 0;
- bool needed_max_length = false;
-
- Vector<const PrecomputedShortest> precomputed =
- PrecomputedShortestRepresentations();
- for (int i = 0; i < precomputed.length(); ++i) {
- const PrecomputedShortest current_test = precomputed[i];
- total++;
- double v = current_test.v;
- status = FastDtoa(v, FAST_DTOA_SHORTEST, 0, buffer, &length, &point);
- CHECK_GE(kFastDtoaMaximalLength, length);
- if (!status) continue;
- if (length == kFastDtoaMaximalLength) needed_max_length = true;
- succeeded++;
- CHECK_EQ(current_test.decimal_point, point);
- CHECK_EQ(current_test.representation, buffer.start());
- }
- CHECK_GT(succeeded*1.0/total, 0.99);
- CHECK(needed_max_length);
-}
-
-
-TEST(FastDtoaGayPrecision) {
- char buffer_container[kBufferSize];
- Vector<char> buffer(buffer_container, kBufferSize);
- bool status;
- int length;
- int point;
- int succeeded = 0;
- int total = 0;
- // Count separately for entries with less than 15 requested digits.
- int succeeded_15 = 0;
- int total_15 = 0;
-
- Vector<const PrecomputedPrecision> precomputed =
- PrecomputedPrecisionRepresentations();
- for (int i = 0; i < precomputed.length(); ++i) {
- const PrecomputedPrecision current_test = precomputed[i];
- double v = current_test.v;
- int number_digits = current_test.number_digits;
- total++;
- if (number_digits <= 15) total_15++;
- status = FastDtoa(v, FAST_DTOA_PRECISION, number_digits,
- buffer, &length, &point);
- CHECK_GE(number_digits, length);
- if (!status) continue;
- succeeded++;
- if (number_digits <= 15) succeeded_15++;
- TrimRepresentation(buffer);
- CHECK_EQ(current_test.decimal_point, point);
- CHECK_EQ(current_test.representation, buffer.start());
- }
- // The precomputed numbers contain many entries with many requested
- // digits. These have a high failure rate and we therefore expect a lower
- // success rate than for the shortest representation.
- CHECK_GT(succeeded*1.0/total, 0.85);
- // However with less than 15 digits almost the algorithm should almost always
- // succeed.
- CHECK_GT(succeeded_15*1.0/total_15, 0.9999);
-}
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