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added test for parsing 0e100

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This commit is contained in:
John Stiles 2018-05-11 15:16:46 -07:00
parent 532cba1422
commit f7d2cd2228
2 changed files with 2 additions and 0 deletions
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1
include/rapidjson/internal/diyfp.h
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@ -99,6 +99,7 @@ struct DiyFp {
} }
DiyFp Normalize() const { DiyFp Normalize() const {
RAPIDJSON_ASSERT(f != 0); // https://stackoverflow.com/a/26809183/291737
#if defined(_MSC_VER) && defined(_M_AMD64) #if defined(_MSC_VER) && defined(_M_AMD64)
unsigned long index; unsigned long index;
_BitScanReverse64(&index, f); _BitScanReverse64(&index, f);

1
test/unittest/readertest.cpp
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@ -207,6 +207,7 @@ static void TestParseDouble() {
TEST_DOUBLE(fullPrecision, "0.0", 0.0); TEST_DOUBLE(fullPrecision, "0.0", 0.0);
TEST_DOUBLE(fullPrecision, "-0.0", -0.0); // For checking issue #289 TEST_DOUBLE(fullPrecision, "-0.0", -0.0); // For checking issue #289
TEST_DOUBLE(fullPrecision, "0e100", 0.0); // Normalize() must not invoke __builtin_clzll(0)
TEST_DOUBLE(fullPrecision, "1.0", 1.0); TEST_DOUBLE(fullPrecision, "1.0", 1.0);
TEST_DOUBLE(fullPrecision, "-1.0", -1.0); TEST_DOUBLE(fullPrecision, "-1.0", -1.0);
TEST_DOUBLE(fullPrecision, "1.5", 1.5); TEST_DOUBLE(fullPrecision, "1.5", 1.5);