gnu/dist/gcc4/libstdc++-v3/testsuite/ext/rope/3.cc

   1 // Copyright (C) 2004, 2005 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 2, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING.  If not, write to the Free
  16 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  17 // USA.
  18
  19 // rope (SGI extension)
  20
  21 #include <ext/rope>
  22 #include <testsuite_hooks.h>
  23
  24 const char base[] =
  25 "Happy families are all alike; every unhappy family is unhappy in   \
  26 its own way.                                                        \
  27                                                                     \
  28 Everything was in confusion in the Oblonskys' house.  The wife      \
  29 had discovered that the husband was carrying on an intrigue with    \
  30 a French girl, who had been a governess in their family, and she    \
  31 had announced to her husband that she could not go on living in     \
  32 the same house with him.  This position of affairs had now lasted   \
  33 three days, and not only the husband and wife themselves, but all   \
  34 the members of their family and household, were painfully           \
  35 conscious of it.  Every person in the house felt that there was     \
  36 so sense in their living together, and that the stray people        \
  37 brought together by chance in any inn had more in common with one   \
  38 another than they, the members of the family and household of the   \
  39 Oblonskys.  The wife did not leave her own room, the husband had    \
  40 not been at home for three days.  The children ran wild all over    \
  41 the house; the English governess quarreled with the housekeeper,    \
  42 and wrote to a friend asking her to look out for a new situation    \
  43 for her; the man-cook had walked off the day before just at         \
  44 dinner time; the kitchen-maid, and the coachman had given           \
  45 warning."
  46   ;
  47
  48 int baselen = sizeof(base) - 1;
  49
  50 template<class StringType>
  51 StringType
  52 multiply(const StringType& s, int n)
  53 {
  54   StringType result;
  55   while (n > 0)
  56     {
  57       result += s;
  58       --n;
  59     }
  60   return result;
  61 }
  62
  63 template <class StringType>
  64 StringType
  65 mung_substrings(const StringType& s, int len, int n, int skip)
  66 {
  67   StringType result;
  68   int start = 0;
  69   while (n > 0)
  70     {
  71       StringType tmp = s.substr (start, len);
  72       result += tmp;
  73       --n;
  74       start += skip;
  75     }
  76   return result;
  77 }
  78
  79 void
  80 test01()
  81 {
  82   using namespace __gnu_cxx;
  83   bool test __attribute__((unused)) = true;
  84
  85   crope r;
  86   r = multiply(crope(base), 100000);
  87
  88   crope r1;
  89   r1 = mung_substrings(r, 100000, 500, 73);
  90
  91   VERIFY( r1.size() == 50000000 );
  92   VERIFY( r1.substr(88888, 6)[0] == 's' );
  93   VERIFY( r1.substr(88888, 6)[2] == 'h' );
  94 }
  95
  96 int main()
  97 {
  98   test01();
  99   return 0;
 100 }