Link-time and run-time error detection, and program instrumentation
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United States of America Patent
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Nov 21, 2000
Grant Date -
N/A
app pub date -
Apr 15, 1997
filing date -
Apr 15, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A programming language processor performs link-time and run-time error checking of a program written in C, C++, or a combination of both. The link-time error checking diagnoses violations of the C++ One Definition Rule, and its equivalent in C. As the program runs, the run-time error checking examines accesses to computer memory to determine that the addresses accessed contain values of che type expected by the program. To add instrumentation to a C or C++ program, pre-expressions, post-expressions and clone-expressions are used to annotate an abstract syntax tree, the annotated tree is then canonicalized into a more traditional syntax tree before a back-end generates code for the program.
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