Github user selvaganesang commented on a diff in the pull request:
https://github.com/apache/incubator-trafodion/pull/909#discussion_r98810157
--- Diff: core/sql/arkcmp/CompException.cpp ---
@@ -113,11 +114,21 @@ FatalException::FatalException(const char *msg,
else {
msg_[0] = 0;
}
+ if(stackTrace) {
+ strncpy(stackTrace_, stackTrace, sizeof(stackTrace_));
+ stackTrace_[sizeof(stackTrace_)-1] = 0;
--- End diff --
@prashanth-vasudev What I meant is if the stackTrace_ is declared as char
*, then sizeof(stackTrace_) would return 4 or 8 bytes irrespective of the
buffer size that was allocated to hold the stack trace. If it is declared as
char stackTrace_[<max_stack_trace_len>], then sizeof(stackTrace_) will be
correct.
This article illustrates the concern I mentioned via a program.
http://www.geeksforgeeks.org/using-sizof-operator-with-array-paratmeters/
This may not be applicable here though because stackTrace_ is the member
variable of the class and this is the method of the class.
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