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Add checkpoints for slice

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This commit is contained in:
Super User 2023-08-25 19:52:39 +03:00
parent 15d8fe75b8
commit 176f0ac293
3 changed files with 13 additions and 1 deletions
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10
examples/slices/slices.go
View File

@ -5,7 +5,8 @@ package main
import ( import (
"fmt" "fmt"
"slices"
"golang.org/x/exp/slices"
) )
func main() { func main() {
@ -26,6 +27,7 @@ func main() {
// as an additional parameter to `make`. // as an additional parameter to `make`.
s = make([]string, 3) s = make([]string, 3)
fmt.Println("emp:", s, "len:", len(s), "cap:", cap(s)) fmt.Println("emp:", s, "len:", len(s), "cap:", cap(s))
fmt.Printf("Slice Address: %p\n", s)
// We can set and get just like with arrays. // We can set and get just like with arrays.
s[0] = "a" s[0] = "a"
@ -36,6 +38,7 @@ func main() {
// `len` returns the length of the slice as expected. // `len` returns the length of the slice as expected.
fmt.Println("len:", len(s)) fmt.Println("len:", len(s))
fmt.Printf("Slice s Address: %p\n", s)
// In addition to these basic operations, slices // In addition to these basic operations, slices
// support several more that make them richer than // support several more that make them richer than
@ -46,6 +49,7 @@ func main() {
s = append(s, "d") s = append(s, "d")
s = append(s, "e", "f") s = append(s, "e", "f")
fmt.Println("apd:", s) fmt.Println("apd:", s)
fmt.Printf("Slice s Address: %p\n", s)
// Slices can also be `copy`'d. Here we create an // Slices can also be `copy`'d. Here we create an
// empty slice `c` of the same length as `s` and copy // empty slice `c` of the same length as `s` and copy
@ -53,20 +57,24 @@ func main() {
c := make([]string, len(s)) c := make([]string, len(s))
copy(c, s) copy(c, s)
fmt.Println("cpy:", c) fmt.Println("cpy:", c)
fmt.Printf("Slice c Address: %p\n", c)
// Slices support a "slice" operator with the syntax // Slices support a "slice" operator with the syntax
// `slice[low:high]`. For example, this gets a slice // `slice[low:high]`. For example, this gets a slice
// of the elements `s[2]`, `s[3]`, and `s[4]`. // of the elements `s[2]`, `s[3]`, and `s[4]`.
l := s[2:5] l := s[2:5]
fmt.Println("sl1:", l) fmt.Println("sl1:", l)
fmt.Printf("Slice l Address: %p\n", l)
// This slices up to (but excluding) `s[5]`. // This slices up to (but excluding) `s[5]`.
l = s[:5] l = s[:5]
fmt.Println("sl2:", l) fmt.Println("sl2:", l)
fmt.Printf("Slice l Address: %p\n", l)
// And this slices up from (and including) `s[2]`. // And this slices up from (and including) `s[2]`.
l = s[2:] l = s[2:]
fmt.Println("sl3:", l) fmt.Println("sl3:", l)
fmt.Printf("Slice l Address: %p\n", l)
// We can declare and initialize a variable for slice // We can declare and initialize a variable for slice
// in a single line as well. // in a single line as well.

1
go.mod
View File

@ -21,4 +21,5 @@ require (
github.com/aws/aws-sdk-go-v2/service/sts v1.7.0 // indirect github.com/aws/aws-sdk-go-v2/service/sts v1.7.0 // indirect
github.com/aws/smithy-go v1.8.0 // indirect github.com/aws/smithy-go v1.8.0 // indirect
github.com/dlclark/regexp2 v1.10.0 // indirect github.com/dlclark/regexp2 v1.10.0 // indirect
golang.org/x/exp v0.0.0-20230817173708-d852ddb80c63 // indirect
) )

3
go.sum
View File

@ -34,6 +34,7 @@ github.com/dlclark/regexp2 v1.10.0/go.mod h1:DHkYz0B9wPfa6wondMfaivmHpzrQ3v9q8cn
github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.6 h1:BKbKCqvP6I+rmFHt06ZmyQtvB8xAkWdhFyr0ZUNZcxQ= github.com/google/go-cmp v0.5.6 h1:BKbKCqvP6I+rmFHt06ZmyQtvB8xAkWdhFyr0ZUNZcxQ=
github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.8 h1:e6P7q2lk1O+qJJb4BtCQXlK8vWEO8V1ZeuEdJNOqZyg=
github.com/hexops/gotextdiff v1.0.3 h1:gitA9+qJrrTCsiCl7+kh75nPqQt1cx4ZkudSTLoUqJM= github.com/hexops/gotextdiff v1.0.3 h1:gitA9+qJrrTCsiCl7+kh75nPqQt1cx4ZkudSTLoUqJM=
github.com/hexops/gotextdiff v1.0.3/go.mod h1:pSWU5MAI3yDq+fZBTazCSJysOMbxWL1BSow5/V2vxeg= github.com/hexops/gotextdiff v1.0.3/go.mod h1:pSWU5MAI3yDq+fZBTazCSJysOMbxWL1BSow5/V2vxeg=
github.com/jmespath/go-jmespath v0.4.0/go.mod h1:T8mJZnbsbmF+m6zOOFylbeCJqk5+pHWvzYPziyZiYoo= github.com/jmespath/go-jmespath v0.4.0/go.mod h1:T8mJZnbsbmF+m6zOOFylbeCJqk5+pHWvzYPziyZiYoo=
@ -42,6 +43,8 @@ github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZN
github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk= github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM= github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
golang.org/x/exp v0.0.0-20230817173708-d852ddb80c63 h1:m64FZMko/V45gv0bNmrNYoDEq8U5YUhetc9cBWKS1TQ=
golang.org/x/exp v0.0.0-20230817173708-d852ddb80c63/go.mod h1:0v4NqG35kSWCMzLaMeX+IQrlSnVE/bqGSyC2cz/9Le8=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4= golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=