arbitrary | Generating structured data
kandi X-RAY | arbitrary Summary
kandi X-RAY | arbitrary Summary
The Arbitrary crate lets you construct arbitrary instances of a type. This crate is primarily intended to be combined with a fuzzer like libFuzzer and cargo-fuzz or AFL, and to help you turn the raw, untyped byte buffers that they produce into well-typed, valid, structured values. This allows you to combine structure-aware test case generation with coverage-guided, mutation-based fuzzers.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of arbitrary
arbitrary Key Features
arbitrary Examples and Code Snippets
Lines of Code : 5License : Permissive (MIT License)
Copypublic void accept(Object param){
assert param != null;
doSomething(param);
} def _serialize_graph(arbitrary_graph):
if isinstance(arbitrary_graph, ops.Graph):
return arbitrary_graph.as_graph_def(add_shapes=True).SerializeToString()
else:
return arbitrary_graph.SerializeToString() Community Discussions
Trending Discussions on arbitrary
QUESTION
Suppose I start with a list as initial_list = [None] * 4. By setting depth = D, how can I define a routine to create a nested list of arbitrary depth in such way that each entry of the first list admits x-1 levels, being each level itself a list of other 4 elements. Something that afterwards would allow to slice data as for example myPrecious[0][0][3][0],myPrecious[3][2][1][0],... ?
ANSWER
Answered 2021-Jun-15 at 16:00You can use list comprehensions in a loop:
QUESTION
This a follow-up on this question: How to efficiently replace one set of values with another set of values in data.table using a lookup table?
I want to make a function which takes arbitrary data.table dt, lookup table dtLookup and efficiently replaces (i.e. using data.table in-memory framework) all values in a column col according to lookup table.
Here's the original code:
...ANSWER
Answered 2021-May-19 at 18:38We don't need as.name. Object on the lhs of = is not evaluated correctly. Instead, we could use a named vector in on with setNames
QUESTION
I want to deal with an abstraction where I can store f1, f2, f3, f4, f5... where
...ANSWER
Answered 2021-Jun-13 at 04:23You can store them with a GADT, like this:
QUESTION
transform file/directory structure into 'tree' in vue json
I have an array of objects that looks like this:
...ANSWER
Answered 2021-Jun-11 at 09:55EDIT
Here is the full implementation, based upon my initial answer. I changed the forEach() into map() as it is more suitable in this case.
QUESTION
In C I know what arguments passed to the program start with index 1. Let's suppose the first argument (which is in index 1) is some arbitrary text, argument 2 in program location/name and ALL others are arguments for that program (I don't know any limit)
After I forked a child process how can I make it run that program?
This is an example of what I used to do when there were no arguments passed:
...ANSWER
Answered 2021-Jun-14 at 22:54You can use the execv variant of the exec family of calls. From the execv man page:
The execv(), execvp(), and execvpe() functions provide an array of pointers to null-terminated strings that represent the argument list available to the new program. The first argument, by convention, should point to the filename associated with the file being executed. The array of pointers must be terminated by a NULL pointer.
Since argv is already an array in the required format all you need to do is skip the args you are not interested in:
QUESTION
I am currently designing a web server with Typescript and have hit a dead end. The target is to have an interface or something similar that lets any other developer without a deep knowledge of the rest of the system just come in, implement their own version of the parser and have it work with the rest of the system. Additionally, I would like to have the option to add more return types without modifying the original code.
Currently, I have the shape of the data defined and I am trying to wrap my head around the parser itself. The data looks like this:
...ANSWER
Answered 2021-Jun-14 at 18:23Since the string type property inside your source arg should determine the overall return type, there is a TypeScript paradigm that can handle this mapping. It's the same one used by addEventListener and its kin in TypeScript's DOM declarations, if you want to consult a broader example.
In your case, you'll need to create a map interface between type string values and the actual types that will be returned for them. The return type of getSource will then be a lookup from that map. Unfortunately, due to some limitations in TypeScript described here, there's an inelegant cast needed when returning each of the possible types. Here's how it all might look (with simpler structures for example purposes):
QUESTION
I am revisiting C++ after a long hiatus, and I would like to use templates to design the known "map" function -- the one which applies a specified function to every element of some specified "iterable" object.
Disregarding the fact my map doesn't return anything (a non-factor here), I have managed to implement what I wanted if the function passed to "map" does not need to accept additional arguments:
ANSWER
Answered 2021-Jun-13 at 20:41A simple way to fix this would be to deduce the non-type template parameter for the function, and reorder the template parameter list
QUESTION
I'm experienced with Pandas but stumbled upon a problem that I can't seem to figure out.
I have a large dataset ((40,000, 16)) and I am trying to group it by a specific column ("group_name" for this matter) and then for each group apply the following rules so it'd merge into one row per group:
- x1, x2, x3 are the "important" columns, if one row has less nulls than the others, take it. (see example with row D)
- If there are conflicts in any column, it's arbitrary and we can pick whatever.
- Combine the nulls on the important fields (x1, x2, x3), see example with row A.
Here is an example with 6 rows that should turn into 4 groups (aka 4 rows).
So far I have
groups = df.groupby['group_name']
I tried many other solutions such as summing each group, applying a transformation, aggregating by each 'important' column, merging on each 'important' column and more. Each solution brought it's own problems so I'm offering this question here without limiting people to a certain way.
Also, I spent nearly two days combining different solutions from other questions but none has seem to work. Perhaps I've missed something.
- Please note that since this is a large dataset, I'd very much like to avoid using
forloop on each group since efficiency is something to consider here.
I hope I explained everything properly, please let me know if something is unclear.
Code to re-create the dataframe (thanks to @Henry Ecker from the first answer):
...ANSWER
Answered 2021-Jun-13 at 16:35Try with groupby aggregate 'first' to get the first (valid) value from every column for each group_name:
QUESTION
I'm looking into using QuestDB for a large amount of financial trade data.
I have read and understood https://questdb.io/docs/guides/importing-data but my case is slightly different.
- I have trade data for multiple instruments.
- For each instrument, the microsecond-timestamped data spans several years.
- The data for each instrument is in a separate CSV file.
My main use case is to query for globally time-ordered sequences of trades for arbitrary subsets of instruments. For clarity, the results of a query would look like
...ANSWER
Answered 2021-Jun-13 at 22:11As of 6.0 you can simply append the CSVs to same table one by one given the table has designated timestamp and partitioned it will work.
If your CSVs are huge I think batching them in transactions with few million rows will be better than offloading billions at once.
Depending of how much data you have and your box memory you need to partition in a way that single partition fits memory several times. So you choose if you want daily or monthly partitions.
Once you decide with partitioning you can speed up the upload if you able to upload day by day batches (or month by month) from all CSVs.
You will not need to rebuild the table every time you add an instrument, table will be rewritten automatically partition by partition when you insert records out of order.
QUESTION
I would like to create a list of vectors of an arbitrary dimension n such that all of their entries range from an input -a to a. I know how to do this for a given dimension. For instance if n=2, the following does the job:
ANSWER
Answered 2021-Jun-13 at 19:17You can use itertools.product for this:
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