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-Warray-bounds option to GCC compiler

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# 8  
Old 02-20-2018
Quote:
Originally Posted by hicksd8
I'm disappointed at that. Have you tried -O3?

Have you seen this:
c - Why do compilers not warn about out-of-bounds static array indices? - Stack Overflow
Yes, I tried -O3 too. What is the point of having that option if it doesn't do what it says it will?
# 9  
Old 02-20-2018
Perhaps a stupid question:

You are using -O2 and -Warray-bounds at the same time?

35587 – -Warray-bounds does not work at all or does not find all trivial cases, and :works only with -O2 or -O3
# 10  
Old 02-20-2018
Quote:
Originally Posted by hicksd8
Perhaps a stupid question:

You are using -O2 and -Warray-bounds at the same time?

35587 - -Warray-bounds does not work at all or does not find all trivial cases, and :works only with -O2 or -O3
See the first post for the man page info. -Warray-bounds is enabled by default with -Wall. Together with -O2 or -O3 or not. It doesn't catch at all. Try and see it for yourself. I am wondering why it is there if it doesn't work..!
# 11  
Old 02-20-2018
Your post#1 suggests you need:

Code:
-O2 -Warray-bounds=2

# 12  
Old 02-20-2018
Quote:
Originally Posted by hicksd8
Your post#1 suggests you need:

Code:
-O2 -Warray-bounds=2

did you read post #6?
# 13  
Old 02-22-2018
Hi hicksd8,
Did you or I miss something?
# 14  
Old 02-22-2018
No, I don't think so. I'm still scratching my head like you and the others.

Some web pages indicate that it works, others say that it doesn't.
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