mirror of https://github.com/arendst/Tasmota.git
154 lines
4.2 KiB
Arduino
154 lines
4.2 KiB
Arduino
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/*
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support_legacy_cores.ino - Legacy arduino core support for Tasmota
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Copyright (C) 2019 Theo Arends
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef ARDUINO_ESP8266_RELEASE_2_3_0
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/*********************************************************************************************\
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* Functions not available in core 2.3.0
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\*********************************************************************************************/
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// Functions not available in 2.3.0
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// http://clc-wiki.net/wiki/C_standard_library:string.h:memchr
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void* memchr(const void* ptr, int value, size_t num)
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{
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unsigned char *p = (unsigned char*)ptr;
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while (num--) {
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if (*p != (unsigned char)value) {
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p++;
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} else {
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return p;
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}
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}
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return 0;
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}
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// http://clc-wiki.net/wiki/C_standard_library:string.h:strcspn
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// Get span until any character in string
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size_t strcspn(const char *str1, const char *str2)
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{
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size_t ret = 0;
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while (*str1) {
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if (strchr(str2, *str1)) { // Slow
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return ret;
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} else {
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str1++;
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ret++;
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}
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}
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return ret;
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}
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// https://clc-wiki.net/wiki/C_standard_library:string.h:strpbrk
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// Locate the first occurrence in the string pointed to by s1 of any character from the string pointed to by s2
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char* strpbrk(const char *s1, const char *s2)
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{
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while(*s1) {
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if (strchr(s2, *s1++)) {
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return (char*)--s1;
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}
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}
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return 0;
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}
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// https://opensource.apple.com/source/Libc/Libc-583/stdlib/FreeBSD/strtoull.c
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// Convert a string to an unsigned long long integer
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#ifndef __LONG_LONG_MAX__
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#define __LONG_LONG_MAX__ 9223372036854775807LL
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#endif
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#ifndef ULLONG_MAX
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#define ULLONG_MAX (__LONG_LONG_MAX__ * 2ULL + 1)
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#endif
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unsigned long long strtoull(const char *__restrict nptr, char **__restrict endptr, int base)
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{
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const char *s = nptr;
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char c;
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do { c = *s++; } while (isspace((unsigned char)c)); // Trim leading spaces
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int neg = 0;
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if (c == '-') { // Set minus flag and/or skip sign
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neg = 1;
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c = *s++;
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} else {
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if (c == '+') {
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c = *s++;
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}
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}
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if ((base == 0 || base == 16) && (c == '0') && (*s == 'x' || *s == 'X')) { // Set Hexadecimal
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c = s[1];
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s += 2;
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base = 16;
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}
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if (base == 0) { base = (c == '0') ? 8 : 10; } // Set Octal or Decimal
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unsigned long long acc = 0;
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int any = 0;
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if (base > 1 && base < 37) {
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unsigned long long cutoff = ULLONG_MAX / base;
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int cutlim = ULLONG_MAX % base;
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for ( ; ; c = *s++) {
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if (c >= '0' && c <= '9')
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c -= '0';
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else if (c >= 'A' && c <= 'Z')
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c -= 'A' - 10;
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else if (c >= 'a' && c <= 'z')
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c -= 'a' - 10;
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else
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break;
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if (c >= base)
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break;
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if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim))
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any = -1;
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else {
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any = 1;
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acc *= base;
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acc += c;
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}
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}
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if (any < 0) {
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acc = ULLONG_MAX; // Range error
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}
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else if (any && neg) {
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acc = -acc;
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}
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}
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if (endptr != nullptr) { *endptr = (char *)(any ? s - 1 : nptr); }
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return acc;
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}
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// https://github.com/arendst/Tasmota/issues/6856#issuecomment-554258914
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void* memmove_P(void *dest, const void *src, size_t n)
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{
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if (src > (void*)0x40000000) {
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return memcpy_P(dest, src, n);
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} else {
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return memmove(dest, src, n);
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}
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}
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#endif // ARDUINO_ESP8266_RELEASE_2_3_0
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/*********************************************************************************************\
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*
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\*********************************************************************************************/
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