test-conversions.cc revision 6ded16be15dd865a9b21ea304d5273c8be299c87
1a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Copyright 2006-2008 the V8 project authors. All rights reserved. 2a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 3a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include <stdlib.h> 4a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 5a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "v8.h" 6a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 7a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "platform.h" 8a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#include "cctest.h" 9a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 10a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockusing namespace v8::internal; 11a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 12a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 13a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockTEST(Hex) { 14a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(0.0, StringToDouble("0x0", ALLOW_HEX | ALLOW_OCTALS)); 15a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(0.0, StringToDouble("0X0", ALLOW_HEX | ALLOW_OCTALS)); 16a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(1.0, StringToDouble("0x1", ALLOW_HEX | ALLOW_OCTALS)); 17a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(16.0, StringToDouble("0x10", ALLOW_HEX | ALLOW_OCTALS)); 18a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(255.0, StringToDouble("0xff", ALLOW_HEX | ALLOW_OCTALS)); 19a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(175.0, StringToDouble("0xAF", ALLOW_HEX | ALLOW_OCTALS)); 20a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 21a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(0.0, StringToDouble("0x0", ALLOW_HEX)); 22a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(0.0, StringToDouble("0X0", ALLOW_HEX)); 23a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(1.0, StringToDouble("0x1", ALLOW_HEX)); 24a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(16.0, StringToDouble("0x10", ALLOW_HEX)); 25a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(255.0, StringToDouble("0xff", ALLOW_HEX)); 26a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(175.0, StringToDouble("0xAF", ALLOW_HEX)); 27a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 28a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 29a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 30a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockTEST(Octal) { 31a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(0.0, StringToDouble("0", ALLOW_HEX | ALLOW_OCTALS)); 32a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(0.0, StringToDouble("00", ALLOW_HEX | ALLOW_OCTALS)); 33a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(1.0, StringToDouble("01", ALLOW_HEX | ALLOW_OCTALS)); 34a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(7.0, StringToDouble("07", ALLOW_HEX | ALLOW_OCTALS)); 35a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(8.0, StringToDouble("010", ALLOW_HEX | ALLOW_OCTALS)); 36a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(63.0, StringToDouble("077", ALLOW_HEX | ALLOW_OCTALS)); 37a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 38a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(0.0, StringToDouble("0", ALLOW_HEX)); 39a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(0.0, StringToDouble("00", ALLOW_HEX)); 40a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(1.0, StringToDouble("01", ALLOW_HEX)); 41a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(7.0, StringToDouble("07", ALLOW_HEX)); 42a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(10.0, StringToDouble("010", ALLOW_HEX)); 43a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(77.0, StringToDouble("077", ALLOW_HEX)); 446ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 456ded16be15dd865a9b21ea304d5273c8be299c87Steve Block const double x = 010000000000; // Power of 2, no rounding errors. 466ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(x * x * x * x * x, StringToDouble("01" "0000000000" "0000000000" 476ded16be15dd865a9b21ea304d5273c8be299c87Steve Block "0000000000" "0000000000" "0000000000", ALLOW_OCTALS)); 48a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 49a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 50a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 51a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockTEST(MalformedOctal) { 52a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(8.0, StringToDouble("08", ALLOW_HEX | ALLOW_OCTALS)); 53a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(81.0, StringToDouble("081", ALLOW_HEX | ALLOW_OCTALS)); 54a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(78.0, StringToDouble("078", ALLOW_HEX | ALLOW_OCTALS)); 55a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 56a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK(isnan(StringToDouble("07.7", ALLOW_HEX | ALLOW_OCTALS))); 57a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK(isnan(StringToDouble("07.8", ALLOW_HEX | ALLOW_OCTALS))); 58a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK(isnan(StringToDouble("07e8", ALLOW_HEX | ALLOW_OCTALS))); 59a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK(isnan(StringToDouble("07e7", ALLOW_HEX | ALLOW_OCTALS))); 60a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 61a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(8.7, StringToDouble("08.7", ALLOW_HEX | ALLOW_OCTALS)); 62a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(8e7, StringToDouble("08e7", ALLOW_HEX | ALLOW_OCTALS)); 63a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 64a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(0.001, StringToDouble("0.001", ALLOW_HEX | ALLOW_OCTALS)); 65a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(0.713, StringToDouble("0.713", ALLOW_HEX | ALLOW_OCTALS)); 66a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 67a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(8.0, StringToDouble("08", ALLOW_HEX)); 68a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(81.0, StringToDouble("081", ALLOW_HEX)); 69a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(78.0, StringToDouble("078", ALLOW_HEX)); 70a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 71a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(7.7, StringToDouble("07.7", ALLOW_HEX)); 72a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(7.8, StringToDouble("07.8", ALLOW_HEX)); 73a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(7e8, StringToDouble("07e8", ALLOW_HEX)); 74a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(7e7, StringToDouble("07e7", ALLOW_HEX)); 75a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 76a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(8.7, StringToDouble("08.7", ALLOW_HEX)); 77a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(8e7, StringToDouble("08e7", ALLOW_HEX)); 78a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 79a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(0.001, StringToDouble("0.001", ALLOW_HEX)); 80a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(0.713, StringToDouble("0.713", ALLOW_HEX)); 81a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 82a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 83a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 84a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockTEST(TrailingJunk) { 85a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(8.0, StringToDouble("8q", ALLOW_TRAILING_JUNK)); 86a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(63.0, StringToDouble("077qqq", ALLOW_OCTALS | ALLOW_TRAILING_JUNK)); 876ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(10.0, StringToDouble("10e", ALLOW_OCTALS | ALLOW_TRAILING_JUNK)); 886ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(10.0, StringToDouble("10e-", ALLOW_OCTALS | ALLOW_TRAILING_JUNK)); 89a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 90a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 91a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 92a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockTEST(NonStrDecimalLiteral) { 93a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK(isnan(StringToDouble(" ", NO_FLAGS, OS::nan_value()))); 94a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK(isnan(StringToDouble("", NO_FLAGS, OS::nan_value()))); 95a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK(isnan(StringToDouble(" ", NO_FLAGS, OS::nan_value()))); 96a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(0.0, StringToDouble("", NO_FLAGS)); 97a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(0.0, StringToDouble(" ", NO_FLAGS)); 98a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 99a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1006ded16be15dd865a9b21ea304d5273c8be299c87Steve BlockTEST(IntegerStrLiteral) { 1016ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(0.0, StringToDouble("0.0", NO_FLAGS)); 1026ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(0.0, StringToDouble("0", NO_FLAGS)); 1036ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(0.0, StringToDouble("00", NO_FLAGS)); 1046ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(0.0, StringToDouble("000", NO_FLAGS)); 1056ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(1.0, StringToDouble("1", NO_FLAGS)); 1066ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(-1.0, StringToDouble("-1", NO_FLAGS)); 1076ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(-1.0, StringToDouble(" - 1 ", NO_FLAGS)); 1086ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(1.0, StringToDouble(" + 1 ", NO_FLAGS)); 1096ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1106ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(0.0, StringToDouble("0e0", ALLOW_HEX | ALLOW_OCTALS)); 1116ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(0.0, StringToDouble("0e1", ALLOW_HEX | ALLOW_OCTALS)); 1126ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(0.0, StringToDouble("0e-1", ALLOW_HEX | ALLOW_OCTALS)); 1136ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(0.0, StringToDouble("0e-100000", ALLOW_HEX | ALLOW_OCTALS)); 1146ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(0.0, StringToDouble("0e+100000", ALLOW_HEX | ALLOW_OCTALS)); 1156ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(0.0, StringToDouble("0.", ALLOW_HEX | ALLOW_OCTALS)); 1166ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 1176ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1186ded16be15dd865a9b21ea304d5273c8be299c87Steve BlockTEST(LongNumberStr) { 1196ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(1e10, StringToDouble("1" "0000000000", NO_FLAGS)); 1206ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(1e20, StringToDouble("1" "0000000000" "0000000000", NO_FLAGS)); 1216ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1226ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(1e60, StringToDouble("1" "0000000000" "0000000000" "0000000000" 1236ded16be15dd865a9b21ea304d5273c8be299c87Steve Block "0000000000" "0000000000" "0000000000", NO_FLAGS)); 1246ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1256ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(1e-2, StringToDouble("." "0" "1", NO_FLAGS)); 1266ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(1e-11, StringToDouble("." "0000000000" "1", NO_FLAGS)); 1276ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(1e-21, StringToDouble("." "0000000000" "0000000000" "1", NO_FLAGS)); 1286ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1296ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(1e-61, StringToDouble("." "0000000000" "0000000000" "0000000000" 1306ded16be15dd865a9b21ea304d5273c8be299c87Steve Block "0000000000" "0000000000" "0000000000" "1", NO_FLAGS)); 1316ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1326ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1336ded16be15dd865a9b21ea304d5273c8be299c87Steve Block // x = 24414062505131248.0 and y = 24414062505131252.0 are representable in 1346ded16be15dd865a9b21ea304d5273c8be299c87Steve Block // double. Check chat z = (x + y) / 2 is rounded to x... 1356ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(24414062505131248.0, 1366ded16be15dd865a9b21ea304d5273c8be299c87Steve Block StringToDouble("24414062505131250.0", NO_FLAGS)); 1376ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1386ded16be15dd865a9b21ea304d5273c8be299c87Steve Block // ... and z = (x + y) / 2 + delta is rounded to y. 1396ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(24414062505131252.0, 1406ded16be15dd865a9b21ea304d5273c8be299c87Steve Block StringToDouble("24414062505131250.000000001", NO_FLAGS)); 1416ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 1426ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1436ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1446ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockextern "C" double gay_strtod(const char* s00, const char** se); 1456ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1466ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1476ded16be15dd865a9b21ea304d5273c8be299c87Steve BlockTEST(MaximumSignificantDigits) { 1486ded16be15dd865a9b21ea304d5273c8be299c87Steve Block char num[] = 1496ded16be15dd865a9b21ea304d5273c8be299c87Steve Block "4.4501477170144020250819966727949918635852426585926051135169509" 1506ded16be15dd865a9b21ea304d5273c8be299c87Steve Block "122872622312493126406953054127118942431783801370080830523154578" 1516ded16be15dd865a9b21ea304d5273c8be299c87Steve Block "251545303238277269592368457430440993619708911874715081505094180" 1526ded16be15dd865a9b21ea304d5273c8be299c87Steve Block "604803751173783204118519353387964161152051487413083163272520124" 1536ded16be15dd865a9b21ea304d5273c8be299c87Steve Block "606023105869053620631175265621765214646643181420505164043632222" 1546ded16be15dd865a9b21ea304d5273c8be299c87Steve Block "668006474326056011713528291579642227455489682133472873831754840" 1556ded16be15dd865a9b21ea304d5273c8be299c87Steve Block "341397809846934151055619529382191981473003234105366170879223151" 1566ded16be15dd865a9b21ea304d5273c8be299c87Steve Block "087335413188049110555339027884856781219017754500629806224571029" 1576ded16be15dd865a9b21ea304d5273c8be299c87Steve Block "581637117459456877330110324211689177656713705497387108207822477" 1586ded16be15dd865a9b21ea304d5273c8be299c87Steve Block "584250967061891687062782163335299376138075114200886249979505279" 1596ded16be15dd865a9b21ea304d5273c8be299c87Steve Block "101870966346394401564490729731565935244123171539810221213221201" 1606ded16be15dd865a9b21ea304d5273c8be299c87Steve Block "847003580761626016356864581135848683152156368691976240370422601" 1616ded16be15dd865a9b21ea304d5273c8be299c87Steve Block "6998291015625000000000000000000000000000000000e-308"; 1626ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1636ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(gay_strtod(num, NULL), StringToDouble(num, NO_FLAGS)); 1646ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1656ded16be15dd865a9b21ea304d5273c8be299c87Steve Block // Changes the result of strtod (at least in glibc implementation). 1666ded16be15dd865a9b21ea304d5273c8be299c87Steve Block num[sizeof(num) - 8] = '1'; 1676ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1686ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(gay_strtod(num, NULL), StringToDouble(num, NO_FLAGS)); 1696ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 1706ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1716ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1726ded16be15dd865a9b21ea304d5273c8be299c87Steve BlockTEST(ExponentNumberStr) { 1736ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(1e1, StringToDouble("1e1", NO_FLAGS)); 1746ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(1e1, StringToDouble("1e+1", NO_FLAGS)); 1756ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(1e-1, StringToDouble("1e-1", NO_FLAGS)); 1766ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(1e100, StringToDouble("1e+100", NO_FLAGS)); 1776ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(1e-100, StringToDouble("1e-100", NO_FLAGS)); 1786ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CHECK_EQ(1e-106, StringToDouble(".000001e-100", NO_FLAGS)); 1796ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 1806ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 181a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockclass OneBit1: public BitField<uint32_t, 0, 1> {}; 182a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockclass OneBit2: public BitField<uint32_t, 7, 1> {}; 183a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockclass EightBit1: public BitField<uint32_t, 0, 8> {}; 184a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockclass EightBit2: public BitField<uint32_t, 13, 8> {}; 185a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 186a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockTEST(BitField) { 187a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block uint32_t x; 188a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 189a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // One bit bit field can hold values 0 and 1. 190a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK(!OneBit1::is_valid(static_cast<uint32_t>(-1))); 191a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK(!OneBit2::is_valid(static_cast<uint32_t>(-1))); 192a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block for (int i = 0; i < 2; i++) { 193a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK(OneBit1::is_valid(i)); 194a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block x = OneBit1::encode(i); 195a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(i, OneBit1::decode(x)); 196a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 197a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK(OneBit2::is_valid(i)); 198a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block x = OneBit2::encode(i); 199a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(i, OneBit2::decode(x)); 200a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 201a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK(!OneBit1::is_valid(2)); 202a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK(!OneBit2::is_valid(2)); 203a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 204a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Eight bit bit field can hold values from 0 tp 255. 205a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK(!EightBit1::is_valid(static_cast<uint32_t>(-1))); 206a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK(!EightBit2::is_valid(static_cast<uint32_t>(-1))); 207a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block for (int i = 0; i < 256; i++) { 208a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK(EightBit1::is_valid(i)); 209a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block x = EightBit1::encode(i); 210a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(i, EightBit1::decode(x)); 211a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK(EightBit2::is_valid(i)); 212a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block x = EightBit2::encode(i); 213a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK_EQ(i, EightBit2::decode(x)); 214a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 215a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK(!EightBit1::is_valid(256)); 216a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block CHECK(!EightBit2::is_valid(256)); 217a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 218