m['x'] = 10; // Correct mistake.
cout ‹‹ "m['x'] = " ‹‹ m['x'] ‹‹ endl;
cout ‹‹ "m['z'] = " ‹‹ m['z'] ‹‹ endl; // Note default value is added.
cout ‹‹ "m.count('z') = " ‹‹ m.count('z') ‹‹ endl;
pair‹maptype::iterator, bool› p;
p = m.insert(pair‹const char, int›('c', 100));
if (p.second) cout ‹‹ "First insertion successful" ‹‹ endl;
p = m.insert(pair‹const char, int› ('c', 100));
if (p.second) cout ‹‹ "Second insertion successful" ‹‹ endl;
else cout ‹‹ "Existing pair " ‹‹ (*(p.first)).first ‹‹ " -› " ‹‹ (*(p.first)).second ‹‹ endl;
return 0;
}
mismtch2.cpp
#include ‹stl.h›
#include ‹iostream.h›
#include ‹string.h›
bool str_equal(const char* a_, const char* b_) {
return ::strcmp(a_, b_) == 0 ? 1: 0;
}
const unsigned size = 5;
char* n1[size] = {"Brett", "Graham", "Jack", "Mike", "Todd"};
int main() {
char* n2[size];
copy(n1, n1 + 5, n2);
pair‹char**, char**› result;
result = mismatch(n1, n1+ size, n2, str_equal);
if (result.first == n1 + size && result.second == n2 + size)
cout ‹‹ "n1 and n2 are the same" ‹‹ endl;
else cout ‹‹ "mismatch at index: " ‹‹ (result.first - n1) ‹‹ endl;
n2[2] = "QED";
result = mismatch(n1, n1 + size, n2, str_equal);
if (result.first == n2 + size && result.second == n2 + size)
cout ‹‹ "n1 and n2 are the same" ‹‹ endl;
else cout ‹‹ "mismatch at index: " ‹‹ (result.first - n1) ‹‹ endl;
return 0;
}
mismtch1.cpp
#include ‹stl.h›
#include ‹iostream.h›
int main() {
typedef vector‹int› IntVec;
IntVec v1(10);
IntVec v2(v1.size());
iota(v1.begin(), v1.end(), 0);
iota(v2.begin(), v2.end(), 0);
pair ‹IntVec::iterator, IntVec::iterator› result;
result = mismatch(v1.begin(), v1.end(), v2.begin());
if (result.first = v1.end() && result.second == v2.end())
cout ‹‹ "v1 and v2 are the same" ‹‹ endl;
else cout ‹‹ "mismatch at index: " ‹‹ (result.first - v1.begin()) ‹‹ endl;
v2[v2.size()/2] = 42;
result = mismatch(v1.begin(), v1.end(), v2.begin());
if (result.first == v1.end() && result.second == v2.end())
cout ‹‹ "v1 and v2 are the same" ‹‹ endl;
else cout ‹‹ "mismatch at index: " ‹‹ (result.first - v1.begin()) ‹‹ endl;
return 0;
}
mmap2.cpp
#include ‹iostream.h›
#include ‹stl.h›
typedef multimap‹int, char, less‹int› › mmap;
typedef pair‹const int, char› pair_type;
pair_type p1(3, 'c');
pair_type p2(6, 'f');
pair_type p3(1, 'a');
pair_type p4(2, 'b');
pair_type p5(3, 'x');
pair_type p6(6, 'f');
pair_type array[] = { p1, p2, p3, p4, p5, p6 };
int main() {
mmap m(array, array + 7);
mmap::iterator i;
// Return location of first element that is not less than 3
i = m.lower_bound(3);
cout ‹‹ "lower bound:" ‹‹ endl;