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  1. #!/usr/bin/perl6
  2. # your code goes here
  3.  
  4. #`(
  5. 	#include <stdio.h>
  6. 	#include <stdlib.h>
  7. 	#include <time.h>
  8.  
  9. 	int array_w(char array[128])
  10. 	{
  11. 	    srand(time(NULL));
  12. 	    for (int i = 0;i < 128;i ++) {
  13. 	        array[i] = "1234567890ABCDEFGHIJKLM"[rand() % 23];
  14. 	    }
  15. 	    array[127] = 0;
  16. 	    return 0;
  17. 	}
  18.  
  19. 	int array_r(char array[128]) {
  20. 	    return printf("%s\n", array);
  21. 	}
  22.  
  23. 	typedef struct Array {
  24. 	    long flag;
  25. 	    char array[128];
  26. 	} Array;
  27.  
  28. 	Array getArray() 
  29. 	{
  30. 	    Array a = { .flag = 20 };
  31.  
  32. 	    array_w(a.array);
  33.  
  34. 	    return a;
  35. 	}
  36.  
  37. 	int getArray_ptr(Array *a)
  38. 	{
  39. 	    a->flag = 21;
  40. 	    array_w(a->array);
  41. 	    return a->flag;
  42. 	}
  43. )
  44.  
  45. use NativeCall;
  46.  
  47. constant LIB="./rw";
  48.  
  49. sub array_w(CArray[int8]) of int32 is native(LIB) { * }
  50.  
  51. sub array_r(CArray[int8]) of int32 is native(LIB) { * }
  52.  
  53. my CArray[int8] $a .= new;
  54.  
  55. $a[$_] = 0 for ^ 128;
  56.  
  57. say array_w($a);
  58.  
  59. say array_r($a);
  60.  
  61. class XArray is repr('CStruct') {
  62.     has long $.flag;
  63.     has CArray[int8] $.array;
  64.  
  65.     submethod TWEAK() {
  66.         $!array = CArray[int8].new;
  67.         $!array[$_] = 0 for ^128;
  68.     }
  69.  
  70.     method array() {
  71.         my Buf $buf .= new;
  72.  
  73.         $buf[$_] = $!array[$_] for ^128;
  74.         $buf.decode('utf8');
  75.     }
  76. }
  77. sub getArray() of XArray is native(LIB) { * }
  78.  
  79. sub getArray_ptr(Array is rw) of int32 is native(LIB) { * }
  80.  
  81. my XArray $x = getArray();
  82.  
  83. say $x.array;
Runtime error #stdin #stdout #stderr 2.5s 181760KB
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Standard input is empty
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Standard output is empty
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Potential difficulties:
    In 'getArray_ptr' routine declaration - Not an accepted NativeCall type for parameter [1]  : Array
     --> For Numerical type, use the appropriate int32/int64/num64...
    at /home/Dp0QNW/prog.pl:81
    ------> ray is rw) of int32 is native(LIB) { * }⏏<EOL>
lock requires a concrete object with REPR ReentrantMutex
  in method setup at /usr/share/perl6/sources/24DD121B5B4774C04A7084827BFAD92199756E03 line 295
  in method CALL-ME at /usr/share/perl6/sources/24DD121B5B4774C04A7084827BFAD92199756E03 line 322
  in block <unit> at prog.pl line 57
https://ideone.com/HpjtHV
language:
Perl (perl 2018.12)
created:
7 years ago
visibility:
public

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