These notes describe an implementation of an algorithm for accurate computation of expm1(x) = exp(x) − 1, one of the new elementary functions introduced in the 1999 ISO C Standard, but already available in most UNIX C implementations. A test package modeled after the Cody and Waite Elementary Function Test Package, ELEFUNT, is developed to evaluate the accuracy of implementations of expm1(x).

The IEEE 754 and 854 standards regulate the behaviour of real floating-point arithmetic, as implemented in most current hardand software systems. Although a myriad of libraries for complex floating-point arithmetic is available and in use, there is no general consensus on their implementation. The International C Standard describes in its Annex G guidelines for the implementation of complex ari...

The next major release of the GNU C library will be 2.3 which marks the beginning of a new phase of the development of the project. The level of functionality and standard compliance of other C libraries in the industry was reached or even surpassed. The main aspects of development today is to fix holes in the implementations (and standards) and optimization. The paper will introduce what is do...

The primary purpose of this paper is to excise concepts from the wording of the standard library's random number facility. In addition, we have herein provided wording to address all known related library issues (even for some that we believe ought be closed as NAD, in order to provide a basis for discussion). The usual color conventions are used throughout the text to denote the proposed chang...

In light of the recent modifications to the de facto standard implementation ObjectiveC language by Apple Inc., the GNU Objective-C runtime lacks a number of features that are desirable for a modern implementation. This paper presents a metaobject protocol flexible enough to implement Objective-C and other languages of interest. It also presents an implementation of this model in the form of a ...

In this paper we present the design and the implementation of Mobile-C, an IEEE Foundation for Intelligent Physical Agents (FIPA) compliant agent platform for mobile C/C++ agents. Such compliance ensures the interoperability between a Mobile-C agent and other agents from heterogeneous FIPA compliant mobile agent platforms. Also, the Mobile-C library was designed to support synchronization in or...

The Paderborn University BSP (PUB) library is a parallel C library based on the BSP model. The basic library supports buffered and unbuffered asynchronous communication between any pair of processors, and a mechanism for synchronizing the processors in a barrier style. In addition, it provides routines for collective communication on arbitrary subsets of processors, partition operations, and a ...

This paper shows that Sigreturn Oriented Programming (SROP), which consists of using calls to sigreturn to execute arbitrary code, is a powerful method for the development of exploits. This is demonstrated by developing two different kinds of SROP based exploits, one asterisk exploit which was already portrayed in the paper presenting SROP, and one novel exploit for a recently disclosed bug in ...