cargo rustc –profile=check — -Zunpretty=expanded, but a more concise alternative is the cargo-expand crate. It provides a Cargo subcommand cargo expand which prints the result of macro expansion. It also passes the expanded code through rustfmt which generally results in much more readable code than the default output from rustc. Install by running cargo install … Read more
The details of how a debugger works will depend on what you are debugging, and what the OS is. For native debugging on Windows you can find some details on MSDN: Win32 Debugging API. The user tells the debugger which process to attach to, either by name or by process ID. If it is a … Read more
In python, using locals which returns a dictionary containing all the local bindings, thus, avoiding eval: >>> foo1 = “Hello world” >>> foo2 = “bar” >>> foo3 = {“1″:”a”, … “2”:”b”} >>> foo4 = “1+1” >>> import pprint >>> pprint.pprint(locals()) {‘__builtins__’: <module ‘__builtin__’ (built-in)>, ‘__doc__’: None, ‘__name__’: ‘__main__’, ‘foo1’: ‘Hello world’, ‘foo2’: ‘bar’, ‘foo3’: {‘1’: … Read more
A jpeg parser, running on a surveillance camera, which crashed every time the company’s CEO came into the room. 100% reproducible error. I kid you not! This is why: For you who doesn’t know much about JPEG compression – the image is kind of broken down into a matrix of small blocks which then are … Read more
From an MSDN blog post: http://blogs.msdn.com/mikhailarkhipov/archive/2005/06/24/432308.aspx Here is how to make ASP debugging work: Enable ASP debugging on the server. (I also added DEBUG verb to the asp extension, but I am not sure if it is required). Open classic ASP in VS 2005. Set breakpoint. View page in browser or run without debugging. Debug … Read more
In the Developer Tools in Chrome, there is a bar along the top, called the Execution Context Selector (h/t felipe-sabino), just under the Elements, Network, Sources… tabs, that changes depending on the context of the current tab. When in the Console tab there is a dropdown in that bar that allows you to select the … Read more
With a debugger you can step through the program assembly interactively. With a disassembler, you can view the program assembly in more detail. With a decompiler, you can turn a program back into partial source code, assuming you know what it was written in (which you can find out with free tools such as PEiD … Read more
Remove the parentheses. SavePendleValues sheetrow, sheetrow Otherwise you are trying to pass as a first argument something in parentheses that has two variables in it, which doesn’t make sense for VBA parser.
@gusbro’s answer (s(X)) shows you how you somewhat solve this with GNU’s debugger. However, if you cannot afford to see all the printing going on, or it is much too slow, you might consider the following “debugger” available as library(debug) in Scryer. I personally do not use debuggers offered by Prolog systems for the simple … Read more
This link has more information: https://en.wikipedia.org/wiki/Magic_number_(programming)#Debug_values * 0xABABABAB : Used by Microsoft’s HeapAlloc() to mark “no man’s land” guard bytes after allocated heap memory * 0xABADCAFE : A startup to this value to initialize all free memory to catch errant pointers * 0xBAADF00D : Used by Microsoft’s LocalAlloc(LMEM_FIXED) to mark uninitialised allocated heap memory * … Read more