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The UN commission on climate requested that Santa measure green house gas emissions from his reindeer. After gathering the data (phew, what a job) and running this program, he got strange results for non-Rudolph reindeer. Can you spot the problem?
bug687.cpp lint Output
--- Module: bug687.cpp (C++) _ total += p->no2 * 297.4; bug687.cpp(15) : Warning 687: Suspicious use of comma _ } bug687.cpp(18) : Info 818: Pointer parameter 'p' (line 10) could be declared as pointing to const
Reference Manual Explanation
687 Suspicious use of comma operator -- A comma operator appeared unbraced and unparenthesized in a statement following an if, else, while or for clause. For example: if( n > 0 ) n = 1, n = 2; Thus the comma could be mistaken for a semi-colon and hence be the source of subtle bugs. If the statement is enclosed in curly braces or if the expression is enclosed in parentheses, the message is not issued.
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