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[[tags: egg]] == unsafe [[toc:]] === Description Unsafe variants of floating-point, fixnum and SRFI-4 core library procedures. === Requirements None === Documentation This extension provides modules that are suitable as replacements for some core library modules, where many or all exported definitions are unsafe in the sense that they do not check argument types, giving a performance improvement in speed critical code. Note that passing arguments of the wrong type to one of these operators may result in crashes or undefined behaviour. The following modules are available in unsafe variants: * {{(chicken unsafe fixum)}} * {{(chicken unsafe flonum)}} * {{(unsafe srfi-4)}} They export exactly the same identifiers as the corresponding core modules [[/man/5/Module (chicken fixnum)|(chicken fixnum)]], [[/man/5/Module (chicken flonum)|(chicken flonum)]] and [[/man/5/Module srfi-4|(srfi 4)]], but with some or all identifiers being mapped to unsafe versions instead. Most of the unsafe variant definitions are inline procedures and only give a performance advantage when global inlining is activated in compiled code, which requires the {{-inline-global}} option (this is also activated at optimization levels 3 or higher). === Author felix winkelmann === Repository This egg is hosted on the CHICKEN Subversion repository: [[https://anonymous@code.call-cc.org/svn/chicken-eggs/release/5/unsafe|https://anonymous@code.call-cc.org/svn/chicken-eggs/release/5/unsafe]] If you want to check out the source code repository of this egg and you are not familiar with Subversion, see [[/egg-svn-checkout|this page]]. === Version History ; 1.0 : Initial release === License Copyright (c) 2018, Felix Winkelmann All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. The name of the authors may not be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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