diff options
Diffstat (limited to 'libc/stdlib/l64a.c')
-rw-r--r-- | libc/stdlib/l64a.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/libc/stdlib/l64a.c b/libc/stdlib/l64a.c new file mode 100644 index 000000000..f3a249fed --- /dev/null +++ b/libc/stdlib/l64a.c @@ -0,0 +1,58 @@ +/* Copyright (C) 1995, 1996, 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <stdlib.h> + +/* Conversion table. */ +static const char conv_table[64] = +{ + '.', '/', '0', '1', '2', '3', '4', '5', + '6', '7', '8', '9', 'A', 'B', 'C', 'D', + 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', + 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', + 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', + 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', + 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', + 's', 't', 'u', 'v', 'w', 'x', 'y', 'z' +}; + +char * +l64a (n) + long int n; +{ + unsigned long int m = (unsigned long int) n; + static char result[7]; + int cnt; + + /* The standard says that only 32 bits are used. */ + m &= 0xffffffff; + + if (m == 0ul) + /* The value for N == 0 is defined to be the empty string. */ + return (char *) ""; + + for (cnt = 0; m > 0ul; ++cnt) + { + result[cnt] = conv_table[m & 0x3f]; + m >>= 6; + } + result[cnt] = '\0'; + + return result; +} |