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Mirror (for Chrome)

While using Chrome I found that a lot of sites sites don't work, due to missing plugins for the new platform. Sometimes just quitting the site is not an option so I created an easy way to open the page in your "old" browser. Just drag and drop the URL from the Chrome URL bar into the Mirror form and you can continue your Chrome browsing.

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C++ sets class v 1.0 Freeware

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The sets class can be used to perform set operations in your programs. It represents set elements as bits in a private array of unsigned long integers. The array size is a defined constant which can be changed to suit your application. The sets class supports the following set operations by means of C++ operator overloading: union The union of two sets A, B is the set of all elements which belong to either A or B. In the sets class, the symbol + is the binary union operator: A + B = {x: x is in A -or- x is in B } intersection The intersection of two sets A, B is the set of all elements which belong to both A and B. The symbol * is the binary intersection operator: A * B = {x: x is in A -and- x is in B } example Let A = {1, 2, 3, 4} and B = {3, 4, 5, 6}. Then A + B = {1, 2, 3, 4, 5, 6} A * B = {3, 4} complement In set theory, sets are subsets of a fixed universal set U. In the sets class, U is the set of elements numbered from 1 to MAX_WORDS * WORD_SIZE. In the class declaration file below, the following definitions are made: #define MAX_WORDS 2 #define WORD_SIZE ( 8 * sizeof( unsigned long ) ) These parameters make the range of U, 1 to 64 in sets. To increase or decrease the size of U, change the defined value of MAX_WORDS. The complement of set A is the set of elements belonging to U but not belonging to A. The symbol ~ is the unary complement operator: ~A = {x: x is in U, x is not in A } example Let A = {1, 2, 3, 4} and B = {3, 4, 5, 6}. Then ~A = {5, 6, 7, . . .} ~B = {1, 2, 7, 8, 9, . . .} difference The difference of two sets A, B is the set of all elements which belong to A less those in B. The symbol - is the binary difference operator: A - B = {x: x is in A, x is not in B} example Let A = {1, 2, 3, 4} and B = {3, 4, 5, 6}. Then A - B = {1, 2} It can be shown that A - B = A * ~B. symmetric difference The symmetric difference of two sets A, B is the set of all elements which belong to A or to B, but not both.

C++ sets class