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111
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1 // PR tree-optimization/49039
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2 // { dg-do run }
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3
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4 template <class T1, class T2>
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5 struct pair
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6 {
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7 T1 first;
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8 T2 second;
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9 pair (const T1 & a, const T2 & b):first (a), second (b) {}
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10 };
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11
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12 template <class T1, class T2>
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13 inline pair <T1, T2>
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14 make_pair (T1 x, T2 y)
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15 {
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16 return pair <T1, T2> (x, y);
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17 }
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18
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19 typedef __SIZE_TYPE__ size_t;
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20 struct S
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21 {
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22 const char *Data;
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23 size_t Length;
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24 static size_t min (size_t a, size_t b) { return a < b ? a : b; }
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25 static size_t max (size_t a, size_t b) { return a > b ? a : b; }
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26 S () :Data (0), Length (0) { }
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27 S (const char *Str) : Data (Str), Length (__builtin_strlen (Str)) {}
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28 S (const char *data, size_t length) : Data (data), Length (length) {}
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29 bool empty () const { return Length == 0; }
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30 size_t size () const { return Length; }
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31 S slice (size_t Start, size_t End) const
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32 {
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33 Start = min (Start, Length);
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34 End = min (max (Start, End), Length);
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35 return S (Data + Start, End - Start);
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36 }
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37 pair <S, S> split (char Separator) const
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38 {
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39 size_t Idx = find (Separator);
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40 if (Idx == ~size_t (0))
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41 return make_pair (*this, S ());
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42 return make_pair (slice (0, Idx), slice (Idx + 1, ~size_t (0)));
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43 }
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44 size_t find (char C, size_t From = 0) const
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45 {
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46 for (size_t i = min (From, Length), e = Length; i != e; ++i)
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47 if (Data[i] == C)
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48 return i;
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49 return ~size_t (0);
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50 }
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51 };
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52
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53 void
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54 Test (const char *arg)
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55 {
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56 S Desc (arg);
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57 while (!Desc.empty ())
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58 {
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59 pair <S, S> Split = Desc.split ('-');
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60 S Token = Split.first;
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61 Desc = Split.second;
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62 if (Token.empty ())
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63 continue;
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64 Split = Token.split (':');
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65 S Specifier = Split.first;
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66 if (Specifier.empty ())
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67 __builtin_abort ();
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68 }
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69 }
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70
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71 int
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72 main ()
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73 {
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74 Test ("-");
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75 return 0;
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76 }
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