diff options
Diffstat (limited to 'nx-X11/programs/Xserver/mi/cbrt.c')
-rw-r--r-- | nx-X11/programs/Xserver/mi/cbrt.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/mi/cbrt.c b/nx-X11/programs/Xserver/mi/cbrt.c new file mode 100644 index 000000000..c703fd9d2 --- /dev/null +++ b/nx-X11/programs/Xserver/mi/cbrt.c @@ -0,0 +1,46 @@ +/* + +Copyright 1990, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included +in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR +OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall +not be used in advertising or otherwise to promote the sale, use or +other dealings in this Software without prior written authorization +from The Open Group. + +*/ + +/* simple cbrt, in case your math library doesn't have a good one */ + +/* + * Would normally include <math.h> for this, but for the sake of compiler + * warnings, we don't want to get duplicate declarations for cbrt(). + */ + +double pow(double, double); +double cbrt(double); + +double +cbrt(double x) +{ + if (x > 0.0) + return pow(x, 1.0/3.0); + else + return -pow(-x, 1.0/3.0); +} |