Pointers
========
```Example from 1 languages: C
int *ptr;
```
```Example from 1 languages: Go
package main
import "fmt"
func main() {
i, j := 42, 2701
p := &i // point to i
fmt.Println(*p) // read i through the pointer
*p = 21 // set i through the pointer
fmt.Println(i) // see the new value of i
p = &j // point to j
*p = *p / 37 // divide j through the pointer
fmt.Println(j) // see the new value of j
}
```
```Example from 1 languages: C#
// Pointers supported only under certain conditions.
// Get 16 bytes of memory from the process's unmanaged memory
IntPtr pointer = System.Runtime.InteropServices.Marshal.AllocHGlobal(16);
```
```Example from 1 languages: Wa-lang
func main {
i, j := 42, 2701
p := &i // point to i
println(*p) // read i through the pointer
*p = 21 // set i through the pointer
println(i) // see the new value of i
p = &j // point to j
*p = *p / 37 // divide j through the pointer
println(j) // see the new value of j
}
```
```Example from 1 languages: Felix
var x = 1;
&x <- 2;
```
```Example from 1 languages: Jule
let ptr: *int = nil
```
```Example from 1 languages: Speedie
|| i = 0
|| p = &i
*p = 1
if (i == 1)
"success"
```
```Example from 1 languages: Fortran 90
type real_list_t
real :: sample_data(100)
type (real_list_t), pointer :: next => null ()
end type
type (real_list_t), target :: my_real_list
type (real_list_t), pointer :: real_list_temp
real_list_temp => my_real_list
do
read (1,iostat=ioerr) real_list_temp%sample_data
if (ioerr /= 0) exit
allocate (real_list_temp%next)
real_list_temp => real_list_temp%next
end do
```
*
Languages *with* Pointers include C, Go, C#, Objective-C, COBOL, Ada, D, C3, Eiffel, Wa-lang, PL/I, Modula-2, Oberon, Felix, Dale, BlitzMax, Jule, FreeBASIC, Aardvark, Speedie, Fortran 90
*
Languages *without* Pointers include JavaScript, Python, Java, Elixir, progsbase
*
View all concepts with or missing a *hasPointers* measurement
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*
Read more about Pointers on the web: 1.
https://en.wikipedia.org/wiki/Pointer_(computer_programming) 1.
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