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strconv: fix %.2g, 40

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Fixes #845.

R=rsc
CC=golang-dev
https://golang.org/cl/1673049
This commit is contained in:
Rob Pike 2010-06-29 16:39:17 -07:00
parent 1246ad8390
commit 21f8ae8fec
2 changed files with 21 additions and 4 deletions
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11
src/pkg/strconv/ftoa_test.go
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@ -34,6 +34,17 @@ var ftoatests = []ftoaTest{
ftoaTest{200000, 'g', -1, "200000"},
ftoaTest{2000000, 'g', -1, "2e+06"},
// g conversion and zero suppression
ftoaTest{400, 'g', 2, "4e+02"},
ftoaTest{40, 'g', 2, "40"},
ftoaTest{4, 'g', 2, "4"},
ftoaTest{.4, 'g', 2, "0.4"},
ftoaTest{.04, 'g', 2, "0.04"},
ftoaTest{.004, 'g', 2, "0.004"},
ftoaTest{.0004, 'g', 2, "0.0004"},
ftoaTest{.00004, 'g', 2, "4e-05"},
ftoaTest{.000004, 'g', 2, "4e-06"},
ftoaTest{0, 'e', 5, "0.00000e+00"},
ftoaTest{0, 'f', 5, "0.00000"},
ftoaTest{0, 'g', 5, "0"},