C: Implicit declaration of function ‘read’ and ‘write’

While working on an socket-based application, we received the following warnings from the compiler:

implicit declaration of function 'read'
implicit declaration of function 'write'

read and write functions are declared in unistd.h which we forgot to include in our code.

Adding the directive

1	`#include <unistd.h>`

to the source file that used read and/or write removed the warnings.

C/C++: Set and Get the name of a pthread

Naming a pthread using meaningful names, can be a very useful feature for debugging multi-threaded applications as it can make your logs very informative. For this reason, we are presenting two examples demonstrating the use of names in pthreads. [download id="3786"] [download id="3788"] Example 1: The pthread decides for its…

29 September 2017

In "C"

C/C++: Comparing the performance of syslog vs printf

The following code tries to compare the performance of syslog() with the printf() command. [download id="3787"] On our machine, it appears that syslog() is faster than printf(). To be as fair as possible, when the application was executing, we were monitoring the system logs as well, so that they will…

29 September 2017

In "C"

SISAL Compiler — useful links and Ubuntu Installation GuideSISAL Compiler — useful links

SISAL (Streams and Iteration in a Single Assignment Language) is a general-purpose single assignment functional programming language with strict semantics, implicit parallelism, and efficient array handling. SISAL outputs a dataflow graph in Intermediary Form 1 (IF1). It was derived from VAL (Value-oriented Algorithmic Language, designed by Jack Dennis), and adds…

29 April 2012

In "Applications"

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