From 236963e7563be3e3f8220dac7bb4af446928e194 Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Mon, 24 Jun 2024 22:55:29 -0400 Subject: Clean out for expt Signed-off-by: Ian Moffett --- sys/lib/string/itoa.c | 134 -------------------------------------------------- 1 file changed, 134 deletions(-) delete mode 100644 sys/lib/string/itoa.c (limited to 'sys/lib/string/itoa.c') diff --git a/sys/lib/string/itoa.c b/sys/lib/string/itoa.c deleted file mode 100644 index 01e2fef..0000000 --- a/sys/lib/string/itoa.c +++ /dev/null @@ -1,134 +0,0 @@ -/* - * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. 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. - * 3. Neither the name of Hyra nor the names of its - * 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. - */ - -#include - -static char *itoa_base10_convert(int64_t value, char *buf); - -static char * -itoa_base10_convert(int64_t value, char *buf) -{ - size_t i; - uint8_t tmp; - bool is_negative; - - i = 0; - is_negative = false; - - if (value == 0) { - buf[i++] = '0'; - buf[i++] = '\0'; - return buf; - } - - if (value < 0) { - /* Easier to handle positive numbers */ - value *= -1; - is_negative = true; - } - - while (value > 0) { - buf[i++] = '0' + (value % 10); - value /= 10; - } - - if (is_negative) { - buf[i++] = '-'; - } - - buf[i--] = '\0'; - - /* Result is in reverse */ - for (int j = 0; j < i; ++j, --i) { - tmp = buf[j]; - buf[j] = buf[i]; - buf[i] = tmp; - } - - return buf; -} - -static char * -itoa_convert_base16(uint64_t n, char *buffer) -{ - bool pad; - uint8_t nibble; - uint8_t i, j, tmp; - const char *ascii_nums = "0123456789ABCDEF"; - - i = 0; - pad = false; - - if (n == 0) { - /* Zero, no need to parse */ - memcpy(buffer, "0x00\0", 5); - return buffer; - } - /* If one digit, pad out 2 later */ - if (n < 0x10) { - pad = true; - } - - while (n > 0) { - nibble = (uint8_t)n & 0x0F; - nibble = ascii_nums[nibble]; - buffer[i++] = nibble; - n >>= 4; /* Fetch next nibble */ - } - - if (pad) { - buffer[i++] = '0'; - } - - /* Add "0x" prefix */ - buffer[i++] = 'x'; - buffer[i++] = '0'; - buffer[i--] = '\0'; - - /* Unreverse the result */ - for (j = 0; j < i; ++j, --i) { - tmp = buffer[j]; - buffer[j] = buffer[i]; - buffer[i] = tmp; - } - return buffer; -} - -char * -itoa(int64_t value, char *buf, int base) -{ - switch (base) { - case 10: - return itoa_base10_convert(value, buf); - case 16: - return itoa_convert_base16(value, buf); - default: - return NULL; - } -} -- cgit v1.2.3