Чтение онлайн

ЖАНРЫ

РУКОВОДСТВО ПО СТАНДАРТНОЙ БИБЛИОТЕКЕ ШАБЛОНОВ (STL)

Менг Ли

Шрифт:

 release(v.begin, v.end); // Delete heap-based objects.

 return 0;

}

incl1.cpp

#include ‹stl.h›

#include ‹iostream.h›

int main {

 vector‹int› v1(10);

 vector‹int› v2(3);

 for (int i = 0; i ‹ v1.size; i++) {

v1[i] = i;

 }

 if (includes(v1.begin, v1.end, v2.begin, v2.end)) cout ‹‹ "v1 includes v2" ‹‹ endl;

 else cout ‹‹ "v1 does not include v2" ‹‹ endl;

 for (i = 0; i ‹ v2.size; i++) v2[i] = i + 3;

 if (includes(v1.begin, v1.end, v2.begin, v2.end)) cout ‹‹ "v1 includes v2" ‹‹ endl;

 else cout ‹‹ "v1 does not include v2" ‹‹ endl;

 return 0;

}

setintr2.cpp

#include ‹stl.h›

#include ‹iostream.h›

#include ‹string.h›

char* word1 = "ABCDEFGHIJKLMNO";

char* word2 = "LMNOPQRSTUVWXYZ";

int main {

 ostream_iterator ‹char› iter(cout, " ");

 cout ‹‹ "word1: ";

 copy(word1, word1 + ::strlen(word1), iter);

 cout ‹‹ "\nword2: ";

 copy(word2, word2 + ::strlen(word2), iter);

 cout ‹‹ endl;

 set_intersection(word1, word1 + ::strlen(word1), word2, word2 + ::strlen(word2), iter, less‹char›);

 cout ‹‹ endl;

 return 0;

}

inrprod1.cpp

#include ‹stl.h›

#include ‹iostream.h›

#include ‹string.h›

int main {

 vector‹int› v1(3);

 vector‹int› v2(v1.size);

 for (int i = 0; i ‹ v1.size; i++) {

v1[i] = i + 1;

v2[i] = v1.size - i;

 }

 ostream_iterator‹int› iter(cout, " ");

 cout ‹‹ "Inner product(sum of products) of:\n\t";

 copy(v1.begin, v1.end, iter);

 cout ‹‹ "\n\t";

 copy(v2.begin, v2.end, iter);

 int result = inner_product(v1.begin, v1.end, v2.begin, 0);

cout ‹‹ "\nis: " ‹‹ result ‹‹ endl;

return 0;

}

merge1.cpp

#include ‹stl.h›

#include ‹iostream.h›

int main {

 vector‹int› v1(5);

 vector‹int› v2(v1.size);

 iota(v1.begin, v1.end, 0);

 iota(v2.begin, v2.end, 3);

 vector‹int› result(v1.size + v2.size);

 merge(v1.begin, v1.end, v2.begin, v2.end, result.begin);

 ostream_iterator‹int› iter(cout, " ");

 copy(v1.begin, v1.end, iter);

 cout ‹‹ endl;

 copy(v2.begin, v2.end, iter);

 cout ‹‹ endl;

 copy(result.begin, result.end, iter);

 cout ‹‹ endl;

 return 0;

}

bcompos2.cpp

#include ‹iostream.h›

#include ‹stl.h›

struct odd: public unary_function‹int, bool› {

 odd {}

 bool operator (int n_) const {return (n_ % 2) - 1;}

};

struct positive: public unary_function‹int, bool› {

 positive {}

 bool operator (int n_) const {return n_ ›= 0;}

};

int array[6] = {-2, -1, 0, 1, 2, 3};

int main {

 int* p = find_if(array, array + 6, compose2(logical_and‹bool›, odd, positive));

 if (p != array + 6) cout ‹‹ *p ‹‹ " is odd and positive" ‹‹ endl;

 return 0;

}

error3.cpp

#include ‹stl.h›

// Compile this code without defining OS_USE_EXCEPTIONS.

void my_handler(int code_, const char* str_) {

 cout ‹‹ "Caught " ‹‹ str_ ‹‹ "[code " ‹‹ code_ ‹‹ "]" ‹‹ endl;

}

int main {

 os_handler_function_t old_h = os_set_error_handler(my_handler);

 vector‹int› v;

 v.pop_back; // Generates an empty object error.

 cout ‹‹ "returned from pop_back" ‹‹ endl;

 os_set_error_handler(old_h);

 v.pop_back; // Generates an empty object error.

 cout ‹‹ "successful termination" ‹‹ endl;

 return 0;

}

incl0.cpp

#include ‹stl.h›

#include ‹iostream.h›

int numbers1[5] = {1, 2, 3, 4, 5};

int numbers2[5] = {1, 2, 4, 8, 16};

int numbers3[2] = {4, 8};

int main {

 if (includes(numbers1, numbers1 + 5, numbers3, numbers3 + 2))

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