105 lines
2.4 KiB
C
105 lines
2.4 KiB
C
/*
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* This file is part of Luma3DS
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* Copyright (C) 2016 Aurora Wright, TuxSH
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*
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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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*
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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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*
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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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* Additional Terms 7.b of GPLv3 applies to this file: Requiring preservation of specified
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* reasonable legal notices or author attributions in that material or in the Appropriate Legal
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* Notices displayed by works containing it.
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*/
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#include "strings.h"
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#include "memory.h"
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u32 strlen(const char *string)
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{
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char *stringEnd = (char *)string;
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while(*stringEnd != 0) stringEnd++;
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return stringEnd - string;
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}
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void concatenateStrings(char *destination, const char *source)
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{
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u32 i = strlen(source),
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j = strlen(destination);
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memcpy(&destination[j], source, i + 1);
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}
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void hexItoa(u32 number, char *out, u32 digits, bool fillString)
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{
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const char hexDigits[] = "0123456789ABCDEF";
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u32 i = 0;
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while(number > 0)
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{
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out[digits - 1 - i++] = hexDigits[number & 0xF];
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number >>= 4;
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}
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if(fillString) while(i < digits) out[digits - 1 - i++] = '0';
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}
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void decItoa(u32 number, char *out, u32 digits)
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{
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while(number >= 10)
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{
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u32 i,
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tmp;
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for(i = 0, tmp = number; tmp >= 10; tmp /= 10, i++);
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out[digits - 1 - i] = '0' + tmp;
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u32 tmp2 = 10;
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while(i > 1)
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{
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tmp2 *= 10;
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i--;
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}
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number -= tmp * tmp2;
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}
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out[digits - 1] = '0' + number;
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}
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u32 hexAtoi(const char *in, u32 digits)
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{
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u32 res = 0;
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char *tmp = (char *)in;
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for(u32 i = 0; i < digits && *tmp != 0; tmp++, i++)
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{
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res <<= 4;
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res += *tmp > '9' ? *tmp - 'A' + 10 : *tmp - '0';
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}
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return res;
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}
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u32 decAtoi(const char *in, u32 digits)
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{
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u32 res = 0;
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char *tmp = (char *)in;
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for(u32 i = 0; i < digits && *tmp != 0; tmp++, i++)
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res = *tmp - '0' + res * 10;
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return res;
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} |