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Are a,b,c in descending order? Does the program agree with you?
1 /************************************************
2 * test to see if three variables are in order. *
3 ************************************************/
4 #include <iostream>
5
6 int main()
7 {
8 int a,b,c; // Three simple variables
9
10 a = 7;
11 b = 5;
12 c = 3;
13
14 // Test to see if they are in order
15 if (a > b > c)
16 std::cout << "a,b,c are in order\n";
17 else
18 std::cout << "a,b,c are mixed up\n";
19 return (o);
20 }
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The debugger for all DEC computers is called DDT. In the PDP-10 DDT manual there is footnote as to how this name came about:
Historical footnote: DDT was developed at MIT for the PDP-1 computer in 1961. At that time DDT stood for "DEC Debugging Tape." Since then, the idea of an on-line debugging program has propagated throughout the computer industry. DDT programs are now available for all DEC computers. Since media other than tape are now frequently used, the more descriptive name "Dynamic Debugging Technique" has been adopted, retaining the DDT acronym. Confusion between DDT-10 and another well-known pesticide, dichloro-diphenyl-trichloroethylene (C14 H9 Cl5), should be minimal since each attacks a different, and apparently mutually exclusive, class of bugs.
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