WRAPTRACE() - Long String Debugging Macro
Posted
by Steve Nelson
on December 21st, 1998
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To provide a solution to this problem, I wrote the WRAPTRACE() macro. This handly little debugging tool breaks down a long string into 80 character, or shorter, lines of text for display in Developer Studio's output window. Like TRACE(), it is only available during debug. However, unlike TRACE(), the output from WRAPTRACE() is imited only by the 32k size barrier of the CString class.
The source compiles and runs fine on VC++ 5.0.
CODE EXAMPLE:
CString strString = "A businessman walked into a New" "York City bank and asked for the loan officer. He said he was going to Europe on business" "for two weeks and needed to borrow $5,000. The loan officer said the bank would need some" "security for such a loan. The business man then handed over the keys to a Rolls Royce that" "was parked on the street in front of the bank. Everything checked out and the loan officer" "accepted the car as collateral for the loan. An employee then drove the Rolls into the" "bank's underground garage and parked it there. Two weeks later the businessman returned," "repaid the $5,000 plus the interest, which came to $15.41. The loan officer said," "\"We do appreciate your business and this transaction has worked out very nicely, but" "we are a bit puzzled. While you were away we checked and found that you are a" "multimillionaire. What puzzles us is why you would bother to borrow $5,000?\" The" "business man replied: \"Where else in New York City, can I park my car securely for 2" "weeks for only 15 bucks?\"";OUTPUT WINDOW TEXT:
WRAPTRACE(strString);
A businessman walked into a New York City bank and asked for the loan officer.Because the text is sent to the output window, it can also be selected and copied elsewhere. This is a very useful tool for debugging embedded SQL. For instance, in the statement just before a recordset is opened, the SQL string is sent via WRAPTRACE() to the output window. The SQL string is then selected and copied into an MS Access97 query where it can be run and debugged. It works great!
He said he was going to Europe on business for two weeks and needed to borrow $5,000. The loan officer said the bank would need some security for such a loan. The business man then handed over the keys to a Rolls Royce that was parked on the street in front of the bank. Everything checked out and the loan officer accepted the car as collateral for the loan. An employee then drove the Rolls into the bank's underground garage and parked it there. Two weeks later the businessman returned, repaid the $5,000 plus the interest, which came to $15.41. The loan officer said, "We do appreciate your business and this transaction has worked out very nicely, but we are a bit puzzled. While you were away we checked and found that you are a multimillionaire. What puzzles us is why you would bother to borrow $5,000?" The business man replied: "Where else in New York City can I park my car securely for 2 weeks for only 15 bucks?"
Comments
Good piece of code!
Posted by Legacy on 09/16/1999 12:00amOriginally posted by: Dan Hintz
Steve, this is a nice piece of code!
Reply