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1 package main
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2
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3 // $ go test -bench=.
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4 /*
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5 void cint_bench( int n ) {
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6 int x = 1;
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7 for( i:=0; i < n; i++ ){
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8 x += x * 1 + x * 1;
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9 x -= x * 1 + x * 1;
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10 }
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11 }
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12
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13 void cfloat_bench( int n ) {
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14 float x = 1.0;
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15 for( i:=0; i < n; i++ ){
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16 x += x * 1.0 + x * 1.0;
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17 x -= x * 1.0 + x * 1.0;
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18 }
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19 }
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20 import "C"
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21 */
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22
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23 import (
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24 //"container/list"
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25 "fmt"
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26 "math/rand"
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27 "sort"
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28 "testing"
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29 )
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30
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31 func BenchmarkIntBench( b *testing.B ) {
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32 x := 1;
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33 for i:=0; i < b.N; i++ {
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34 x += x * 1 + x * 1
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35 x -= x * 1 + x * 1
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36 }
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37 //fmt.Println( x )
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38 }
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39
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40 func BenchmarkFloatBench( b *testing.B ) {
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41 x := 1.0;
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42 for i:=0; i < b.N; i++ {
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43 x += x * 1.0 + x * 1.0
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44 x -= x * 1.0 + x * 1.0
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45 }
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46 //fmt.Println( x )
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47 }
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48
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49 /*
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50 func BenchmarkCIntBench( b *testing.B ) {
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51 C.cint_bench( b.N )
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52 }
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53
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54 func BenchmarkCFloatBench( b *testing.B ) {
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55 C.cfloat_bench( b.N )
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56 }
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57 */
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58
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59 func TestX( t *testing.T ) {
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60 for i:=0; i < 20; i++ {
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61 fmt.Println( rand.Intn( 3 ) - 1 )
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62 }
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63 }
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64
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65 // $ go test -run="S1"
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66 func TestS1( t *testing.T ) {
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67 type Idx struct {
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68 index int
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69 value int
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70 }
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71 god7 := []Idx{ { 0,6 }, { 1,1 }, { 2,3 }, { 3,2 }, { 4,4 }, { 5,0 }, { 6,6 } }
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72 sort.SliceStable( god7, func( i, j int ) bool { return god7[i].value < god7[j].value } )
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73 fmt.Println( god7 )
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74 }
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75
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76
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