According to the C99 standard, section 7.21.4.4, ยง3., it is legal: The strncmp function returns an integer greater than, equal to, or less than zero, accordingly as the possibly null-terminated array pointed to by s1 is greater than, equal to, or less than the possibly null-terminated array pointed to by s2. Notice, however, that it … Read more
The Standard is somewhat fuzzy here, as a concrete implementation will largely be influenced by the scheduling capabilities of the underlying operating system. That being said, you can safely assume a few things on any modern OS: yield will give up the current timeslice and re-insert the thread into the scheduling queue. The amount of … Read more
I have attempted this and it would take more time than you want to spend to embed Python 3 without the Python library. Some modules in the library are necessary for Python 3 to run and it would take a lot of modifications for it to work without them.
Nothing in C++ prevents standard headers from including other standard headers. So if you include any standard header you might conceivably indirectly include all of them. However, this behaviour is totally implementation dependent, and if you need the features of a specific header you should always explicitly include it yourself.
Mersenne Twister is a shift-register based pRNG (pseudo-random number generator) and is therefore subject to bad seeds with long runs of 0s or 1s that lead to relatively predictable results until the internal state is mixed up enough. However the constructor which takes a single value uses a complicated function on that seed value which … Read more
The “c” stands for “character” because iostreams map values to and from byte (char) representations. [Bjarne Stroustrup’s C++ Style and Technique FAQ]
Modules to cover in a 1-2 hour slot entirely depend on your audience’s interest or focus. What other classes are they taking? What are they prepared to make use of immediately? Be sure to mention math, decimal and datetime and time and re. For IT-types who will be doing file-oriented work: glob, fnmatch, os, os.path, … Read more
What C standard library functions are used inappropriately/in ways that may cause/lead to security problems/code defects/inefficiencies ? I’m gonna go with the obvious : char *gets(char *s); With its remarkable particularity that it’s simply impossible to use it appropriately.
The corelist command from the Module::CoreList module will determine if a module is Core or not. > corelist Carp Carp was first release with perl 5 > corelist XML::Twig XML::Twig was not in CORE (or so I think) Here is one way to use it in a script. The Module::CoreList POD is too terse — … Read more