diff options
Diffstat (limited to 'src/lib/kStuff/kHlp/Generic/kHlpInt2Ascii.c')
-rw-r--r-- | src/lib/kStuff/kHlp/Generic/kHlpInt2Ascii.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/lib/kStuff/kHlp/Generic/kHlpInt2Ascii.c b/src/lib/kStuff/kHlp/Generic/kHlpInt2Ascii.c new file mode 100644 index 0000000..dcea005 --- /dev/null +++ b/src/lib/kStuff/kHlp/Generic/kHlpInt2Ascii.c @@ -0,0 +1,83 @@ +/* $Id: kHlpInt2Ascii.c 113 2018-07-12 11:34:27Z bird $ */ +/** @file + * kHlpString - kHlpInt2Ascii. + */ + +/* + * Copyright (c) 2006-2007 Knut St. Osmundsen <bird-kStuff-spamix@anduin.net> + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * 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 AUTHORS OR COPYRIGHT + * HOLDERS 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. + */ + +/******************************************************************************* +* Header Files * +*******************************************************************************/ +#include <k/kHlpString.h> + + +/** + * Converts an signed integer to an ascii string. + * + * @returns psz. + * @param psz Pointer to the output buffer. + * @param cch The size of the output buffer. + * @param lVal The value. + * @param iBase The base to format it. (2,8,10 or 16) + */ +KHLP_DECL(char *) kHlpInt2Ascii(char *psz, KSIZE cch, long lVal, unsigned iBase) +{ + static const char s_szDigits[] = "0123456789abcdefghijklmnopqrstuvwxyz"; + char *pszRet = psz; + + if (psz != NULL) + { + if (cch >= (lVal < 0 ? 3U : 2U)) + { + /* prefix */ + if (lVal < 0) + { + *psz++ = '-'; + cch--; + lVal = -lVal; + } + + /* the digits */ + do + { + *psz++ = s_szDigits[lVal % iBase]; + cch--; + lVal /= iBase; + } while (lVal && cch > 1); + + /* overflow indicator */ + if (lVal) + psz[-1] = '+'; + } + else if (cch > 1) + *psz++ = '+'; + else if (cch < 1) + return pszRet; + *psz = '\0'; + } + return pszRet; +} + |