The article std::find() and memchr() Optimizations contains benchmark results for an Intel Core i5, an i7 and an older AMD system. This followup also adds results for a relatively recent SPARC system and an older PPC one.
First released in 2013, the SPARC T5 is a relative …
Assume you need to parse a record based format with flexible
width and one-byte delimiters. When using C++, the std::find() STL
algorithm is the obvious choice for efficiently locating the
delimiters. The idiomatic C solution is to use memchr().
The purpose of the LD_LIBRARY_PATH environment variable is to instruct the
linker to consider additional directories when searching for libraries. Its
valid use case is the test of alternative library versions installed in
non-standard locations. In contrast to that, globally setting the
LD_LIBRARY_PATH (e.g. in the profile of a …
There are several products for shipping books in Germany. Two products are really book specific ('Bücher- und Warensendung'), they are cheap but they are slowly transported and there is no tracking. The following table compares different attributes and constraints of the products available in the market (last update: 2020-06-01).
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The sprintf() and snprintf() C library functions are commonly
used for formatting a string and writing the result into a buffer.
But sometimes it is surprising in how many ways sprintf() can
be misused.
Some enterprise C programs look like submissions to …