diff options
Diffstat (limited to 'std/fmt/parse_float.zig')
| -rw-r--r-- | std/fmt/parse_float.zig | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/std/fmt/parse_float.zig b/std/fmt/parse_float.zig index ce2cc70768..d0a826a55e 100644 --- a/std/fmt/parse_float.zig +++ b/std/fmt/parse_float.zig @@ -110,9 +110,7 @@ fn convertRepr(comptime T: type, n: FloatRepr) T { q.shiftLeft1(s); // q = p << 1 r.shiftLeft1(q); // r = p << 2 s.shiftLeft1(r); // p = p << 3 - q.add(s); // p = (p << 3) + (p << 1) - - exp -= 1; + s.add(q); // p = (p << 3) + (p << 1) while (s.d2 & mask28 != 0) { q.shiftRight1(s); @@ -402,6 +400,13 @@ test "fmt.parseFloat" { expectEqual((try parseFloat(T, "+0")), 0.0); expectEqual((try parseFloat(T, "-0")), 0.0); + expectEqual((try parseFloat(T, "0e0")), 0); + expectEqual((try parseFloat(T, "2e3")), 2000.0); + expectEqual((try parseFloat(T, "1e0")), 1.0); + expectEqual((try parseFloat(T, "-2e3")), -2000.0); + expectEqual((try parseFloat(T, "-1e0")), -1.0); + expectEqual((try parseFloat(T, "1.234e3")), 1234); + expect(approxEq(T, try parseFloat(T, "3.141"), 3.141, epsilon)); expect(approxEq(T, try parseFloat(T, "-3.141"), -3.141, epsilon)); @@ -413,6 +418,9 @@ test "fmt.parseFloat" { expectEqual((try parseFloat(T, "-INF")), -std.math.inf(T)); if (T != f16) { + expect(approxEq(T, try parseFloat(T, "1e-2"), 0.01, epsilon)); + expect(approxEq(T, try parseFloat(T, "1234e-2"), 12.34, epsilon)); + expect(approxEq(T, try parseFloat(T, "123142.1"), 123142.1, epsilon)); expect(approxEq(T, try parseFloat(T, "-123142.1124"), T(-123142.1124), epsilon)); expect(approxEq(T, try parseFloat(T, "0.7062146892655368"), T(0.7062146892655368), epsilon)); |