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rules for conditional breakpoints
- From: Peter Jay Salzman <p at dirac dot org>
- To: Gdb Mailing List <gdb at sources dot redhat dot com>
- Date: Wed, 25 Sep 2002 22:10:31 -0700
- Subject: rules for conditional breakpoints
hi all,
what exactly are the rules for conditional breakpoints? clearly the
condition can use the standard boolean operators, along with the logical
qualifiers:
break main if i > 3
break test.c:3 if i !=0 && j <=0
but libc functions linked to the code also seem to work:
break 40 if *(string + strlen(string)) != '\0'
from a previous email i sent to this list, i gather that strlen() works
"by accident", and only functions that return an int work. so this
won't work, even with typecasting:
break 1 if (double)cos(0) == 1.0L
so, this seems to be the rule for conditional breakpoints:
1. equality/inequality operators. ie:
<, >, <=, >=
2. logic operators. ie:
&&, ||
3. libc functions linked to code but ONLY if they return an int. ie:
strlen(), abs()
is this correct?
thanks!
pete
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