From Code to Community: Sponsoring The Perl and Raku Conference 2025 Learn more

LNATION / Number-Iterator-XS-1.02 / lib / Number / Iterator / XS.xs 

            

              
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97

              
#define PERL_NO_GET_CONTEXT // we'll define thread context if necessary (faster)
#include "EXTERN.h"         // globals/constant import locations
#include "perl.h"           // Perl symbols, structures and constants definition
#include "XSUB.h"           // xsubpp functions and macros
#include <stdlib.h>         // rand()
#include <string.h>
MODULE = Number::Iterator::XS  PACKAGE = Number::Iterator::XS
PROTOTYPES: ENABLE
FALLBACK: TRUE 
SV *
new(...)
        CODE:
                HV * hash = newHV();;
                SV * class = newSVsv(ST(0));
                for (int i = 1; i < items; i += 2) {
                        char * key = SvPV_nolen(ST(i));
                        *hv_store(hash, key, strlen(key), newSVsv(ST(i + 1)), 0);
                }
                if (SvTYPE(class) != SVt_PV) {
                        char * name = HvNAME(SvSTASH(SvRV(class)));
                        class = newSVpv(name, strlen(name));
                }
                RETVAL = sv_bless(newRV_noinc((SV*)hash), gv_stashsv(class, 0));
        OUTPUT:
                RETVAL
SV * 
iterate(self, ...)
        SV * self
        OVERLOAD: ++
        CODE:
                HV * hash = (HV*)SvRV(self);
                if (hv_exists(hash, "iterate", 7)) {
                        SV * cb = *hv_fetch(hash, "iterate", 7, 0);
                        dSP;
                        PUSHMARK(SP);
                        XPUSHs(self);
                        PUTBACK;
                        call_sv(cb, G_SCALAR);
                } else {
                        double value = hv_exists(hash, "value", 5) ? SvNV(*hv_fetch(hash, "value", 5, 0)) : 0.;
                        double interval = hv_exists(hash, "interval", 8) ? SvNV(*hv_fetch(hash, "interval", 8, 0)) : 1.;
                        *hv_store(hash, "value", 5, newSVnv(value + interval), 0);
                }
                RETVAL = newSVsv(self);
        OUTPUT:
                RETVAL
SV * 
deiterate(self, ...)
        SV * self
        OVERLOAD: --
        CODE:
                HV * hash = (HV*)SvRV(self);
                if (hv_exists(hash, "deiterate", 9)) {
                        SV * cb = *hv_fetch(hash, "deiterate", 9, 0);
                        dSP;
                        PUSHMARK(SP);
                        XPUSHs(self);
                        PUTBACK;
                        call_sv(cb, G_SCALAR);
                } else {
                        double value = hv_exists(hash, "value", 5) ? SvNV(*hv_fetch(hash, "value", 5, 0)) : 0;
                        double interval = hv_exists(hash, "interval", 8) ? SvNV(*hv_fetch(hash, "interval", 8, 0)) : 1;
                        *hv_store(hash, "value", 5, newSVnv(value - interval), 0);
                }
                RETVAL = newSVsv(self);;
        OUTPUT:
                RETVAL
SV * 
value(self, ...)
        SV * self
        OVERLOAD: \"\"
        CODE:
                HV * hash = (HV*)SvRV(self);
                if (items > 1 && SvTYPE(ST(1)) == SVt_NV) {
                        *hv_store(hash, "value", 5, newSVsv(ST(1)), 0);
                }
                RETVAL = hv_exists(hash, "value", 5) ? newSVsv(*hv_fetch(hash, "value", 5, 0)) : newSViv(0);
        OUTPUT:
                RETVAL
SV * 
interval(self, ...)
        SV * self
        CODE:
                HV * hash = (HV*)SvRV(self);
                if (items > 1 && SvTYPE(ST(1)) == SVt_NV) {
                        *hv_store(hash, "interval", 8, newSVsv(ST(1)), 0);
                }
                RETVAL = hv_exists(hash, "interval", 8) ? newSVsv(*hv_fetch(hash, "interval", 8, 0)) : newSViv(1);
        OUTPUT:
                RETVAL