mirror of
https://github.com/golang/go.git
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079c00a475
in new package strconv. move atoi etc to strconv too. update fmt, etc to use strconv. R=r DELTA=2232 (1691 added, 424 deleted, 117 changed) OCL=19286 CL=19380
96 lines
2.6 KiB
Go
96 lines
2.6 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import "strconv"
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type Test struct {
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f float64;
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fmt byte;
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prec int;
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s string;
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}
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var tests = []Test {
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Test{ 1, 'e', 5, "1.00000e+00" },
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Test{ 1, 'f', 5, "1.00000" },
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Test{ 1, 'g', 5, "1" },
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Test{ 1, 'g', -1, "1" },
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Test{ 0, 'e', 5, "0.00000e+00" },
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Test{ 0, 'f', 5, "0.00000" },
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Test{ 0, 'g', 5, "0" },
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Test{ 0, 'g', -1, "0" },
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Test{ -1, 'e', 5, "-1.00000e+00" },
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Test{ -1, 'f', 5, "-1.00000" },
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Test{ -1, 'g', 5, "-1" },
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Test{ -1, 'g', -1, "-1" },
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Test{ 12, 'e', 5, "1.20000e+01" },
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Test{ 12, 'f', 5, "12.00000" },
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Test{ 12, 'g', 5, "12" },
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Test{ 12, 'g', -1, "12" },
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Test{ 123456700, 'e', 5, "1.23457e+08" },
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Test{ 123456700, 'f', 5, "123456700.00000" },
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Test{ 123456700, 'g', 5, "1.2346e+08" },
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Test{ 123456700, 'g', -1, "1.234567e+08" },
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Test{ 1.2345e6, 'e', 5, "1.23450e+06" },
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Test{ 1.2345e6, 'f', 5, "1234500.00000" },
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Test{ 1.2345e6, 'g', 5, "1.2345e+06" },
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Test{ 1e23, 'e', 17, "9.99999999999999916e+22" },
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Test{ 1e23, 'f', 17, "99999999999999991611392.00000000000000000" },
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Test{ 1e23, 'g', 17, "9.9999999999999992e+22" },
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Test{ 1e23, 'e', -1, "1e+23" },
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Test{ 1e23, 'f', -1, "100000000000000000000000" },
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Test{ 1e23, 'g', -1, "1e+23" },
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Test{ 1e23-8.5e6, 'e', 17, "9.99999999999999748e+22" },
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Test{ 1e23-8.5e6, 'f', 17, "99999999999999974834176.00000000000000000" },
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Test{ 1e23-8.5e6, 'g', 17, "9.9999999999999975e+22" },
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Test{ 1e23-8.5e6, 'e', -1, "9.999999999999997e+22" },
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Test{ 1e23-8.5e6, 'f', -1, "99999999999999970000000" },
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Test{ 1e23-8.5e6, 'g', -1, "9.999999999999997e+22" },
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Test{ 1e23+8.5e6, 'e', 17, "1.00000000000000008e+23" },
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Test{ 1e23+8.5e6, 'f', 17, "100000000000000008388608.00000000000000000" },
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Test{ 1e23+8.5e6, 'g', 17, "1.0000000000000001e+23" },
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Test{ 1e23+8.5e6, 'e', -1, "1.0000000000000001e+23" },
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Test{ 1e23+8.5e6, 'f', -1, "100000000000000010000000" },
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Test{ 1e23+8.5e6, 'g', -1, "1.0000000000000001e+23" },
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Test{ 32, 'g', -1, "32" },
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}
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func main() {
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bad := 0;
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if strconv.floatsize != 32 {
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panic("floatsize: ", strconv.floatsize);
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}
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for i := 0; i < len(tests); i++ {
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t := &tests[i];
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s := strconv.ftoa64(t.f, t.fmt, t.prec);
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if s != t.s {
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println("test", t.f, string(t.fmt), t.prec, "want", t.s, "got", s);
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bad++;
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}
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if float64(float32(t.f)) == t.f {
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s := strconv.ftoa32(float32(t.f), t.fmt, t.prec);
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if s != t.s {
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println("test32", t.f, string(t.fmt), t.prec, "want", t.s, "got", s);
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bad++;
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}
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}
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}
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if bad != 0 {
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panic("failed");
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}
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}
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