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* For tiny x, tanhf = x*(one+x). GCC (at -O2) optimized this intomartynas2011-07-021-0/+2
| | | | | x+x*x, as a result sign got lost for the zero inputs. Explicitly return in this case, similarly like has been done in tanh.
* rcsid[] and sccsid[] and copyright[] are essentially unmaintained (andderaadt2009-10-271-4/+0
| | | | | | | unmaintainable). these days, people use source. these id's do not provide any benefit, and do hurt the small install media (the 33,000 line diff is essentially mechanical) ok with the idea millert, ok dms
* We live in an ANSI C world. Remove lots of gratuitous #ifdef __STDC__ cruft.millert2002-02-191-10/+2
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* initial import of NetBSD treederaadt1995-10-181-0/+64