282     static const struct TestCase {  in testUseApproximateDoubleWhenAble()  struct
283         double d;  in testUseApproximateDoubleWhenAble()
284         int32_t maxFrac;  in testUseApproximateDoubleWhenAble()
285         RoundingMode roundingMode;  in testUseApproximateDoubleWhenAble()
286         bool usesExact;  in testUseApproximateDoubleWhenAble()
314     static const struct TestCase {  in testHardDoubleConversion()  struct
315         double input;  in testHardDoubleConversion()
316         const char16_t* expectedOutput;  in testHardDoubleConversion()
344     static const struct TestCase {  in testToDouble()  struct
345         const char* input; // char* for the decNumber constructor  in testToDouble()
346         double expected;  in testToDouble()