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When does a process get SIGABRT (signal 6)?
...arios where a process gets a SIGABRT in C++? Does this signal always come from within the process or can this signal be sent from one process to another?
...
Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
...rt of the MapReduce paradigm, which deals with orderless collections (multisets), Fold is formally defined in terms of recursion (see catamorphism) and thus assumes a structure / sequence to the collections.
There is no fold method in Scalding because under the (strict) Map Reduce programming model...
Postgres and Indexes on Foreign Keys and Primary Keys
...,
( 'r', 'restrict' ),
( 'c', 'cascade' ),
( 'n', 'set null' ),
( 'd', 'set default' )
),
fk_list AS (
SELECT pg_constraint.oid as fkoid, conrelid, confrelid as parentid,
conname, relname, nspname,
fk_actions_update.action as update_action,
...
How do you implement a class in C? [closed]
...
That depends on the exact "object-oriented" feature-set you want to have. If you need stuff like overloading and/or virtual methods, you probably need to include function pointers in structures:
typedef struct {
float (*computeArea)(const ShapeClass *shape);
} ShapeClass;
...
How do I update Node.js?
...l steps to use NVM for multiple version of node on windows
download nvm-setup.zip extract and install it.
execute command nvm list available from cmd or gitbash or powershell, this will list all available version of node
use command nvm install version e.g. nvm install 12.14.0 to install on th...
How can I quickly sum all numbers in a file?
I have a file which contains several thousand numbers, each on it's own line:
33 Answers
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What are good grep tools for Windows? [closed]
... the filename if a file contains a match.
/O Prints character offset before each matching line.
/P Skip files with non-printable characters.
/OFF[LINE] Do not skip files with offline attribute set.
/A:attr Specifies color attribute with two hex digits. See "color /?"
/F:...
How can I have grep not print out 'No such file or directory' errors?
I'm grepping through a large pile of code managed by git, and whenever I do a grep, I see piles and piles of messages of the form:
...
Java regex email
First of all, I know that using regex for email is not recommended but I gotta test this out.
20 Answers
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Format string, integer with leading zeros
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