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Add infinity support for Numeric AssignTo

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This commit is contained in:
Jim Tsao 2021-10-31 13:32:23 +01:00 committed by Jack Christensen
parent e0f9fc5212
commit 001b3166b9
2 changed files with 8 additions and 0 deletions
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4
numeric.go
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@ -403,6 +403,10 @@ func (dst *Numeric) toBigInt() (*big.Int, error) {
func (src *Numeric) toFloat64() (float64, error) {
if src.NaN {
return math.NaN(), nil
} else if src.InfinityModifier == Infinity {
return math.Inf(1), nil
} else if src.InfinityModifier == NegativeInfinity {
return math.Inf(-1), nil
}
buf := make([]byte, 0, 32)

4
numeric_test.go
View File

@ -287,6 +287,10 @@ func TestNumericAssignTo(t *testing.T) {
{src: &pgtype.Numeric{Int: big.NewInt(1006), Exp: -2, Status: pgtype.Present}, dst: &f64, expected: float64(10.06)}, // https://github.com/jackc/pgtype/issues/27
{src: &pgtype.Numeric{Status: pgtype.Present, NaN: true}, dst: &f64, expected: math.NaN()},
{src: &pgtype.Numeric{Status: pgtype.Present, NaN: true}, dst: &f32, expected: float32(math.NaN())},
{src: &pgtype.Numeric{Status: pgtype.Present, InfinityModifier: pgtype.Infinity}, dst: &f64, expected: math.Inf(1)},
{src: &pgtype.Numeric{Status: pgtype.Present, InfinityModifier: pgtype.Infinity}, dst: &f32, expected: float32(math.Inf(1))},
{src: &pgtype.Numeric{Status: pgtype.Present, InfinityModifier: pgtype.NegativeInfinity}, dst: &f64, expected: math.Inf(-1)},
{src: &pgtype.Numeric{Status: pgtype.Present, InfinityModifier: pgtype.NegativeInfinity}, dst: &f32, expected: float32(math.Inf(-1))},
}
for i, tt := range simpleTests {