On Sunday, 4 November 2018 at 08:27:34 UTC, Rainer Schuetze wrote:
On 03/11/2018 17:31, Michelle Long wrote:
On Saturday, 3 November 2018 at 08:10:37 UTC, Rainer Schuetze
wrote:
On 30/10/2018 16:21, Michelle Long wrote:
statement1; statement2;
Would be nice to easily be able to set a BP just on
statement2 without having to add a new line.
I haven't seen this with the VS native debugger and C++, so I
doubt it is feasible.
Supposedly it is possible. When you put a BP it has a "char"
value which is usually set to 1. (you can see it in when you
hover over the BP).
Supposedly setting the value to something else allows one to
do BP's in the middle of lines. It may be only valid for
certain languages though but it is doable in some cases as you
can find information online about people doing it.
https://stackoverflow.com/questions/36166205/setting-a-breakpoint-in-the-middle-of-a-line-with-multiple-statements
These examples are with the debugger for managed code (e.g.
C#), not the debug engine for native applications.
I haven't yet seen any compiler (C++ or D) emit CodeView debug
information that contains more than the line number.
Is it then possible to simply split a line internally to handle
it?
1. Surely the char/statement for the BP on a multi-statement line
can be determined?
2. If such a BP exist then simply insert a new line in the text
before compiling(I know it modifies the code but it's just
whitespace and it could be an optional feature).
3. Then remove the inserted new line character after compiling.
(might need to suppress file modifications temporarily).
4. When a BP is hit just re-calculate the line positions(will be
offset by one and such.
Should be pretty simple to do and allows one to not have to worry
about reformatting code just to add BP's.
I routinely do stuff like
if (x) return;
and I want a BP on the return, not the if. I have to insert the
new line by hand just so I can add a BP!
Since this is a white space problem it really should be trival
and technically should be supported by the compiler and
debugger/IDE. It's a pretty basic problem and also helpful to
have the ability to put BP's in the middle of lines.
It may actually be easier to implement though since the IDE
already does have some of the capabilities.
