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-rw-r--r--deps/v8/test/cctest/test-dtoa.cc135
1 files changed, 66 insertions, 69 deletions
diff --git a/deps/v8/test/cctest/test-dtoa.cc b/deps/v8/test/cctest/test-dtoa.cc
index 8f156d9f2a..56d5f05ebf 100644
--- a/deps/v8/test/cctest/test-dtoa.cc
+++ b/deps/v8/test/cctest/test-dtoa.cc
@@ -27,12 +27,12 @@
#include <stdlib.h>
-#include "src/v8.h"
+#include "src/init/v8.h"
-#include "src/dtoa.h"
+#include "src/numbers/dtoa.h"
#include "src/base/platform/platform.h"
-#include "src/double.h"
+#include "src/numbers/double.h"
#include "test/cctest/cctest.h"
#include "test/cctest/gay-fixed.h"
#include "test/cctest/gay-precision.h"
@@ -42,17 +42,14 @@ namespace v8 {
namespace internal {
namespace test_dtoa {
-// 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';
+// Removes trailing '0' digits (modifies {representation}). Can create an empty
+// string if all digits are 0.
+static void TrimRepresentation(char* representation) {
+ size_t len = strlen(representation);
+ while (len > 0 && representation[len - 1] == '0') --len;
+ representation[len] = '\0';
}
-
static const int kBufferSize = 100;
@@ -64,202 +61,202 @@ TEST(DtoaVariousDoubles) {
int sign;
DoubleToAscii(0.0, DTOA_SHORTEST, 0, buffer, &sign, &length, &point);
- CHECK_EQ(0, strcmp("0", buffer.start()));
+ CHECK_EQ(0, strcmp("0", buffer.begin()));
CHECK_EQ(1, point);
DoubleToAscii(0.0, DTOA_FIXED, 2, buffer, &sign, &length, &point);
CHECK_EQ(1, length);
- CHECK_EQ(0, strcmp("0", buffer.start()));
+ CHECK_EQ(0, strcmp("0", buffer.begin()));
CHECK_EQ(1, point);
DoubleToAscii(0.0, DTOA_PRECISION, 3, buffer, &sign, &length, &point);
CHECK_EQ(1, length);
- CHECK_EQ(0, strcmp("0", buffer.start()));
+ CHECK_EQ(0, strcmp("0", buffer.begin()));
CHECK_EQ(1, point);
DoubleToAscii(1.0, DTOA_SHORTEST, 0, buffer, &sign, &length, &point);
- CHECK_EQ(0, strcmp("1", buffer.start()));
+ CHECK_EQ(0, strcmp("1", buffer.begin()));
CHECK_EQ(1, point);
DoubleToAscii(1.0, DTOA_FIXED, 3, buffer, &sign, &length, &point);
CHECK_GE(3, length - point);
- TrimRepresentation(buffer);
- CHECK_EQ(0, strcmp("1", buffer.start()));
+ TrimRepresentation(buffer.begin());
+ CHECK_EQ(0, strcmp("1", buffer.begin()));
CHECK_EQ(1, point);
DoubleToAscii(1.0, DTOA_PRECISION, 3, buffer, &sign, &length, &point);
CHECK_GE(3, length);
- TrimRepresentation(buffer);
- CHECK_EQ(0, strcmp("1", buffer.start()));
+ TrimRepresentation(buffer.begin());
+ CHECK_EQ(0, strcmp("1", buffer.begin()));
CHECK_EQ(1, point);
DoubleToAscii(1.5, DTOA_SHORTEST, 0, buffer, &sign, &length, &point);
- CHECK_EQ(0, strcmp("15", buffer.start()));
+ CHECK_EQ(0, strcmp("15", buffer.begin()));
CHECK_EQ(1, point);
DoubleToAscii(1.5, DTOA_FIXED, 10, buffer, &sign, &length, &point);
CHECK_GE(10, length - point);
- TrimRepresentation(buffer);
- CHECK_EQ(0, strcmp("15", buffer.start()));
+ TrimRepresentation(buffer.begin());
+ CHECK_EQ(0, strcmp("15", buffer.begin()));
CHECK_EQ(1, point);
DoubleToAscii(1.5, DTOA_PRECISION, 10, buffer, &sign, &length, &point);
CHECK_GE(10, length);
- TrimRepresentation(buffer);
- CHECK_EQ(0, strcmp("15", buffer.start()));
+ TrimRepresentation(buffer.begin());
+ CHECK_EQ(0, strcmp("15", buffer.begin()));
CHECK_EQ(1, point);
double min_double = 5e-324;
DoubleToAscii(min_double, DTOA_SHORTEST, 0, buffer, &sign, &length, &point);
- CHECK_EQ(0, strcmp("5", buffer.start()));
+ CHECK_EQ(0, strcmp("5", buffer.begin()));
CHECK_EQ(-323, point);
DoubleToAscii(min_double, DTOA_FIXED, 5, buffer, &sign, &length, &point);
CHECK_GE(5, length - point);
- TrimRepresentation(buffer);
- CHECK_EQ(0, strcmp("", buffer.start()));
+ TrimRepresentation(buffer.begin());
+ CHECK_EQ(0, strcmp("", buffer.begin()));
CHECK_GE(-5, point);
DoubleToAscii(min_double, DTOA_PRECISION, 5, buffer, &sign, &length, &point);
CHECK_GE(5, length);
- TrimRepresentation(buffer);
- CHECK_EQ(0, strcmp("49407", buffer.start()));
+ TrimRepresentation(buffer.begin());
+ CHECK_EQ(0, strcmp("49407", buffer.begin()));
CHECK_EQ(-323, point);
double max_double = 1.7976931348623157e308;
DoubleToAscii(max_double, DTOA_SHORTEST, 0, buffer, &sign, &length, &point);
- CHECK_EQ(0, strcmp("17976931348623157", buffer.start()));
+ CHECK_EQ(0, strcmp("17976931348623157", buffer.begin()));
CHECK_EQ(309, point);
DoubleToAscii(max_double, DTOA_PRECISION, 7, buffer, &sign, &length, &point);
CHECK_GE(7, length);
- TrimRepresentation(buffer);
- CHECK_EQ(0, strcmp("1797693", buffer.start()));
+ TrimRepresentation(buffer.begin());
+ CHECK_EQ(0, strcmp("1797693", buffer.begin()));
CHECK_EQ(309, point);
DoubleToAscii(4294967272.0, DTOA_SHORTEST, 0, buffer, &sign, &length, &point);
- CHECK_EQ(0, strcmp("4294967272", buffer.start()));
+ CHECK_EQ(0, strcmp("4294967272", buffer.begin()));
CHECK_EQ(10, point);
DoubleToAscii(4294967272.0, DTOA_FIXED, 5, buffer, &sign, &length, &point);
CHECK_GE(5, length - point);
- TrimRepresentation(buffer);
- CHECK_EQ(0, strcmp("4294967272", buffer.start()));
+ TrimRepresentation(buffer.begin());
+ CHECK_EQ(0, strcmp("4294967272", buffer.begin()));
CHECK_EQ(10, point);
DoubleToAscii(4294967272.0, DTOA_PRECISION, 14,
buffer, &sign, &length, &point);
CHECK_GE(14, length);
- TrimRepresentation(buffer);
- CHECK_EQ(0, strcmp("4294967272", buffer.start()));
+ TrimRepresentation(buffer.begin());
+ CHECK_EQ(0, strcmp("4294967272", buffer.begin()));
CHECK_EQ(10, point);
DoubleToAscii(4.1855804968213567e298, DTOA_SHORTEST, 0,
buffer, &sign, &length, &point);
- CHECK_EQ(0, strcmp("4185580496821357", buffer.start()));
+ CHECK_EQ(0, strcmp("4185580496821357", buffer.begin()));
CHECK_EQ(299, point);
DoubleToAscii(4.1855804968213567e298, DTOA_PRECISION, 20,
buffer, &sign, &length, &point);
CHECK_GE(20, length);
- TrimRepresentation(buffer);
- CHECK_EQ(0, strcmp("41855804968213567225", buffer.start()));
+ TrimRepresentation(buffer.begin());
+ CHECK_EQ(0, strcmp("41855804968213567225", buffer.begin()));
CHECK_EQ(299, point);
DoubleToAscii(5.5626846462680035e-309, DTOA_SHORTEST, 0,
buffer, &sign, &length, &point);
- CHECK_EQ(0, strcmp("5562684646268003", buffer.start()));
+ CHECK_EQ(0, strcmp("5562684646268003", buffer.begin()));
CHECK_EQ(-308, point);
DoubleToAscii(5.5626846462680035e-309, DTOA_PRECISION, 1,
buffer, &sign, &length, &point);
CHECK_GE(1, length);
- TrimRepresentation(buffer);
- CHECK_EQ(0, strcmp("6", buffer.start()));
+ TrimRepresentation(buffer.begin());
+ CHECK_EQ(0, strcmp("6", buffer.begin()));
CHECK_EQ(-308, point);
DoubleToAscii(-2147483648.0, DTOA_SHORTEST, 0,
buffer, &sign, &length, &point);
CHECK_EQ(1, sign);
- CHECK_EQ(0, strcmp("2147483648", buffer.start()));
+ CHECK_EQ(0, strcmp("2147483648", buffer.begin()));
CHECK_EQ(10, point);
DoubleToAscii(-2147483648.0, DTOA_FIXED, 2, buffer, &sign, &length, &point);
CHECK_GE(2, length - point);
- TrimRepresentation(buffer);
+ TrimRepresentation(buffer.begin());
CHECK_EQ(1, sign);
- CHECK_EQ(0, strcmp("2147483648", buffer.start()));
+ CHECK_EQ(0, strcmp("2147483648", buffer.begin()));
CHECK_EQ(10, point);
DoubleToAscii(-2147483648.0, DTOA_PRECISION, 5,
buffer, &sign, &length, &point);
CHECK_GE(5, length);
- TrimRepresentation(buffer);
+ TrimRepresentation(buffer.begin());
CHECK_EQ(1, sign);
- CHECK_EQ(0, strcmp("21475", buffer.start()));
+ CHECK_EQ(0, strcmp("21475", buffer.begin()));
CHECK_EQ(10, point);
DoubleToAscii(-3.5844466002796428e+298, DTOA_SHORTEST, 0,
buffer, &sign, &length, &point);
CHECK_EQ(1, sign);
- CHECK_EQ(0, strcmp("35844466002796428", buffer.start()));
+ CHECK_EQ(0, strcmp("35844466002796428", buffer.begin()));
CHECK_EQ(299, point);
DoubleToAscii(-3.5844466002796428e+298, DTOA_PRECISION, 10,
buffer, &sign, &length, &point);
CHECK_EQ(1, sign);
CHECK_GE(10, length);
- TrimRepresentation(buffer);
- CHECK_EQ(0, strcmp("35844466", buffer.start()));
+ TrimRepresentation(buffer.begin());
+ CHECK_EQ(0, strcmp("35844466", buffer.begin()));
CHECK_EQ(299, point);
uint64_t smallest_normal64 = V8_2PART_UINT64_C(0x00100000, 00000000);
double v = Double(smallest_normal64).value();
DoubleToAscii(v, DTOA_SHORTEST, 0, buffer, &sign, &length, &point);
- CHECK_EQ(0, strcmp("22250738585072014", buffer.start()));
+ CHECK_EQ(0, strcmp("22250738585072014", buffer.begin()));
CHECK_EQ(-307, point);
DoubleToAscii(v, DTOA_PRECISION, 20, buffer, &sign, &length, &point);
CHECK_GE(20, length);
- TrimRepresentation(buffer);
- CHECK_EQ(0, strcmp("22250738585072013831", buffer.start()));
+ TrimRepresentation(buffer.begin());
+ CHECK_EQ(0, strcmp("22250738585072013831", buffer.begin()));
CHECK_EQ(-307, point);
uint64_t largest_denormal64 = V8_2PART_UINT64_C(0x000FFFFF, FFFFFFFF);
v = Double(largest_denormal64).value();
DoubleToAscii(v, DTOA_SHORTEST, 0, buffer, &sign, &length, &point);
- CHECK_EQ(0, strcmp("2225073858507201", buffer.start()));
+ CHECK_EQ(0, strcmp("2225073858507201", buffer.begin()));
CHECK_EQ(-307, point);
DoubleToAscii(v, DTOA_PRECISION, 20, buffer, &sign, &length, &point);
CHECK_GE(20, length);
- TrimRepresentation(buffer);
- CHECK_EQ(0, strcmp("2225073858507200889", buffer.start()));
+ TrimRepresentation(buffer.begin());
+ CHECK_EQ(0, strcmp("2225073858507200889", buffer.begin()));
CHECK_EQ(-307, point);
DoubleToAscii(4128420500802942e-24, DTOA_SHORTEST, 0,
buffer, &sign, &length, &point);
CHECK_EQ(0, sign);
- CHECK_EQ(0, strcmp("4128420500802942", buffer.start()));
+ CHECK_EQ(0, strcmp("4128420500802942", buffer.begin()));
CHECK_EQ(-8, point);
v = -3.9292015898194142585311918e-10;
DoubleToAscii(v, DTOA_SHORTEST, 0, buffer, &sign, &length, &point);
- CHECK_EQ(0, strcmp("39292015898194143", buffer.start()));
+ CHECK_EQ(0, strcmp("39292015898194143", buffer.begin()));
v = 4194304.0;
DoubleToAscii(v, DTOA_FIXED, 5, buffer, &sign, &length, &point);
CHECK_GE(5, length - point);
- TrimRepresentation(buffer);
- CHECK_EQ(0, strcmp("4194304", buffer.start()));
+ TrimRepresentation(buffer.begin());
+ CHECK_EQ(0, strcmp("4194304", buffer.begin()));
v = 3.3161339052167390562200598e-237;
DoubleToAscii(v, DTOA_PRECISION, 19, buffer, &sign, &length, &point);
CHECK_GE(19, length);
- TrimRepresentation(buffer);
- CHECK_EQ(0, strcmp("3316133905216739056", buffer.start()));
+ TrimRepresentation(buffer.begin());
+ CHECK_EQ(0, strcmp("3316133905216739056", buffer.begin()));
CHECK_EQ(-236, point);
}
@@ -279,7 +276,7 @@ TEST(DtoaGayShortest) {
DoubleToAscii(v, DTOA_SHORTEST, 0, buffer, &sign, &length, &point);
CHECK_EQ(0, sign); // All precomputed numbers are positive.
CHECK_EQ(current_test.decimal_point, point);
- CHECK_EQ(0, strcmp(current_test.representation, buffer.start()));
+ CHECK_EQ(0, strcmp(current_test.representation, buffer.begin()));
}
}
@@ -301,8 +298,8 @@ TEST(DtoaGayFixed) {
CHECK_EQ(0, sign); // All precomputed numbers are positive.
CHECK_EQ(current_test.decimal_point, point);
CHECK_GE(number_digits, length - point);
- TrimRepresentation(buffer);
- CHECK_EQ(0, strcmp(current_test.representation, buffer.start()));
+ TrimRepresentation(buffer.begin());
+ CHECK_EQ(0, strcmp(current_test.representation, buffer.begin()));
}
}
@@ -325,8 +322,8 @@ TEST(DtoaGayPrecision) {
CHECK_EQ(0, sign); // All precomputed numbers are positive.
CHECK_EQ(current_test.decimal_point, point);
CHECK_GE(number_digits, length);
- TrimRepresentation(buffer);
- CHECK_EQ(0, strcmp(current_test.representation, buffer.start()));
+ TrimRepresentation(buffer.begin());
+ CHECK_EQ(0, strcmp(current_test.representation, buffer.begin()));
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-03 17:36:55 +0000