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#define PERL_NO_GET_CONTEXT |
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2
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#include "EXTERN.h" |
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#include "perl.h" |
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4
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#include "XSUB.h" |
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5
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#include "ppport.h" |
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#include |
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#include |
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#include "words.h" |
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9
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10
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#ifndef __bool_true_false_are_defined |
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# define __bool_true_false_are_defined 1 |
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# define false 0 |
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# define true 1 |
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#endif |
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16
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#ifndef U64 |
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typedef uint64_t U64; |
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#endif |
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20
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#ifndef likely |
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# define likely(x) __builtin_expect((x), 1) |
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#endif |
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24
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#ifndef unlikely |
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25
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# define unlikely(x) __builtin_expect((x), 0) |
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#endif |
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28
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/* Macro for choosing the ending corresponding to the specified value */ |
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#define ending4value(value) \ |
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((value) % 100 / 10 - 1) && (value) % 10 > 0 && (value) % 10 < 5 \ |
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31
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? (value) % 10 > 1 ? COUPLE : SINGLE : SEVERAL |
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32
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33
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#define double2kopeck(value) \ |
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34
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(U8) nearbyint(((value) - (U64) (value)) * 100) % 100 |
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35
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36
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STATIC SV * |
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5099
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kopeck2words(pTHX_ U8 value, bool words) { |
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38
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5099
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100
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U8 ending = ending4value(value); |
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100
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100
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39
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5099
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SV *value_pv = sv_2mortal(newSVpvs("")); |
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40
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5099
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100
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if (words) { |
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41
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2
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50
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if (value % 100 < 20) { |
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2
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50
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const char *word = strcmp(funits[value % 100], "") ? funits[value % 100] : zero; |
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43
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2
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sv_catpvn(value_pv, word, strlen(word)); |
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44
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} else { |
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45
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0
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sv_catpvn(value_pv, tens[value % 100 / 10], strlen(tens[value % 100 / 10])); |
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46
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0
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sv_catpvn(value_pv, funits[value % 10], strlen(funits[value % 10])); |
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47
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} |
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48
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} else { |
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49
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char value_str[4]; |
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50
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10194
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sprintf(value_str, "%02d ", value); |
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51
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5097
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sv_catpvn(value_pv, value_str, strlen(value_str)); |
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52
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} |
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53
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5099
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sv_catpvn(value_pv, kopeck[ending], strlen(kopeck[ending])); |
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54
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5099
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return value_pv; |
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55
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} |
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57
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STATIC SV * |
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58
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15005
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ruble2words(pTHX_ U16 value, U8 decade, bool words) { |
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59
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15005
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100
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U8 ending = ending4value(value); |
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100
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100
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60
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15005
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SV *value_pv = sv_2mortal(newSVpvs("")); |
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61
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15005
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100
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if (!value) { |
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62
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9990
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100
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if (!decade) |
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63
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3996
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sv_catpvn(value_pv, ruble[decade][ending], strlen(ruble[decade][ending])); |
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64
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return value_pv; |
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65
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} |
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66
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5015
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50
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if (words) { |
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67
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5015
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sv_catpvn(value_pv, hundreds[value / 100], strlen(hundreds[value / 100])); |
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68
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5015
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100
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char **units = (char **) (decade == THOUSAND ? funits : munits); |
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69
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5015
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100
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if (value % 100 < 20) { |
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70
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997
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sv_catpvn(value_pv, units[value % 100], strlen(units[value % 100])); |
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71
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} else { |
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72
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4018
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sv_catpvn(value_pv, tens[value % 100 / 10], strlen(tens[value % 100 / 10])); |
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73
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4018
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sv_catpvn(value_pv, units[value % 10], strlen(units[value % 10])); |
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74
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} |
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75
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} else { |
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76
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char value_str[5]; |
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77
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0
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sprintf(value_str, "%d ", value); |
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78
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0
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sv_catpvn(value_pv, value_str, strlen(value_str)); |
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79
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} |
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80
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5015
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sv_catpvn(value_pv, ruble[decade][ending], strlen(ruble[decade][ending])); |
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81
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5015
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return value_pv; |
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82
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} |
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83
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84
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STATIC SV * |
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85
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5101
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money2words(pTHX_ double amount, bool ruble_cvt, bool kopeck_cvt) { |
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86
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5101
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100
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if (unlikely(amount < MONEY_MIN)) |
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87
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1
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croak("Negative amount can't be processed"); |
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88
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5100
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100
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if (unlikely(amount >= MONEY_MAX)) |
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89
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1
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croak("Given amount can't be processed due to the type overflow"); |
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90
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5099
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100
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if (unlikely(amount >= pow(1e3, TRILLION))) |
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91
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1003
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warn("Kopeck value is calculated inaccurate due to the lack for " |
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92
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"significant digits after the radix point"); |
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93
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5099
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100
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U8 kopeck_v = amount < pow(1e3, TRILLION) ? double2kopeck(amount) : 0; |
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94
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5099
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AV *stack = (AV *) sv_2mortal((SV *) newAV()); |
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95
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5099
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av_push(stack, kopeck2words(aTHX_ kopeck_v, kopeck_cvt)); |
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96
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5099
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U64 ruble_v = (U64) amount; |
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97
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U8 decade; |
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98
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20104
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100
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for (decade = UNIT; ruble_v > 0; ruble_v /= 1000, decade++) |
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99
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15005
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av_push(stack, ruble2words(aTHX_ ruble_v % 1000, decade, ruble_cvt)); |
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100
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/* Build the result string */ |
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101
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5099
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SV *words = sv_2mortal(newSVpvs("")); |
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102
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25203
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100
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while (av_len(stack) + 1) |
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103
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20104
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sv_catsv(words, av_pop(stack)); |
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104
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5099
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SvUTF8_on(words); |
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105
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5099
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return words; |
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106
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} |
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107
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108
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MODULE = Lingua::RU::Money::XS PACKAGE = Lingua::RU::Money::XS |
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109
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110
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void |
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111
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rur2words(SV *amount) |
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112
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PROTOTYPE: $ |
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113
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PPCODE: |
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114
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5099
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50
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ST(0) = money2words(aTHX_ SvNV(amount), true, false); |
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115
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5097
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XSRETURN(1); |
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116
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117
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void |
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118
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all2words(SV *amount) |
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119
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PROTOTYPE: $ |
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120
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PPCODE: |
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121
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2
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50
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ST(0) = money2words(aTHX_ SvNV(amount), true, true); |
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122
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2
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XSRETURN(1); |