| /* Copyright (c) 2005, Dmitry Xmelkov |
| All rights reserved. |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions are met: |
| |
| * Redistributions of source code must retain the above copyright |
| notice, this list of conditions and the following disclaimer. |
| * 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. |
| * Neither the name of the copyright holders nor the names of |
| contributors may be used to endorse or promote products derived |
| from this software without specific prior written permission. |
| |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR CONTRIBUTORS 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. */ |
| |
| /* $Id: dtostrf.c 1944 2009-04-01 23:12:20Z arcanum $ */ |
| |
| #include <stdlib.h> |
| #include "ftoa_engine.h" |
| #include "dtoa_conv.h" |
| #include "sectionname.h" |
| |
| /* ??? Is 'width' a signed value? |
| dtostrf.S comment: |
| If precision is < 0, the string is left adjusted with leading spaces. |
| If precision is > 0, the string is right adjusted with trailing spaces. |
| dtostrf.S code: |
| 'p_width' is a register for left/right adjustment |
| avr-libc manual: |
| nothing about this |
| |
| So, for compatibilty 'width' is signed value to left/right adjust. |
| */ |
| |
| ATTRIBUTE_CLIB_SECTION |
| char * |
| dtostrf (double val, signed char width, unsigned char prec, char *sout) |
| { |
| unsigned char flags; |
| |
| /* DTOA_UPPER: for compatibility with avr-libc <= 1.4 with NaNs */ |
| flags = width < 0 ? DTOA_LEFT | DTOA_UPPER : DTOA_UPPER; |
| dtoa_prf (val, sout, abs(width), prec, flags); |
| return sout; |
| } |
| /*** end of file ***/ |