EmsiaetKadosh
109 lines
5.4 KiB
C
109 lines
5.4 KiB
C
//
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// Created by EmsiaetKadosh on 25-1-17.
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//
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#pragma once
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#include "def.h"
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[[nodiscard]] inline unsigned int wtouib16(const wchar* string) noexcept {
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unsigned int ret = 0;
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while (*string != L'\0') {
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if (ret & 0xf0000000) return 0xffffffff;
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if (*string >= L'0' && *string <= L'9') {
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ret <<= 4;
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ret += *string - L'0';
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} else if (*string >= L'A' && *string <= L'F') {
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ret <<= 4;
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ret += *string - 0x41;// 'A' - 10
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} else if (*string >= L'a' && *string <= L'f') {
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ret <<= 4;
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ret += *string - 0x61;// 'a' - 10
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} else return 0xffffffff;
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++string;
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}
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return ret;
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}
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[[nodiscard]] inline unsigned int wtouib16(const wchar* const string, const unsigned long long length) noexcept {
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unsigned int ret = 0;
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unsigned long long i = 0;
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while (i < length) {
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if (ret & 0xf0000000) return 0xffffffff;
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if (string[i] >= L'0' && string[i] <= L'9') {
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ret <<= 4;
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ret += string[i] - L'0';
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} else if (string[i] >= L'A' && string[i] <= L'F') {
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ret <<= 4;
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ret += string[i] - 0x41;// L'A' - 10
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} else if (string[i] >= L'a' && string[i] <= L'f') {
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ret <<= 4;
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ret += string[i] - 0x61;// L'a' - 10
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} else return 0xffffffff;
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++i;
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}
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return ret;
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}
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/**
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* 将数字转换为字符串
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* @param value 要转换的数字
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* @param fills 填充位数。返回的字符串长度一定不小于该值
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* @return String类型
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*/
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[[nodiscard]] inline String uitowb16(unsigned int value, const unsigned int fills = 1) noexcept {
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static constexpr wchar Table16[17] = L"0123456789ABCDEF";
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String ret;
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if (value < static_cast<unsigned int>(1) << fills - 1) {
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ret.assign(fills, L'0');
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for (unsigned int i = fills - 1; i != 0 && value; --i) {
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ret[i] = Table16[value & 0xf];
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value >>= 4;
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}
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} else {
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unsigned int i = 0;
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while (i < 8) {
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if ((value >> i) & 0xf) break;
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++i;
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}
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while (i < 8) {
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ret.push_back(Table16[(value >> i) & 0xf]);
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++i;
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}
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if (ret.empty()) ret = L"0";
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}
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return ret;
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}
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[[nodiscard]] inline String qwtowb10(QWORD value, const unsigned int fills = 1) noexcept {
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static constexpr wchar Table10[11] = L"0123456789";
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static constexpr QWORD Compare10[20] = {
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0, 10, 100, 1000, 10000, 100000, 1000000, 10000000,
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100000000, 1000000000, 10000000000, 100000000000,
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1000000000000, 10000000000000, 100000000000000,
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1000000000000000, 10000000000000000, 100000000000000000,
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1000000000000000000, 10000000000000000000
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};
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String ret;
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if (value < Compare10[fills]) {
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ret.assign(fills, L'0');
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for (unsigned int i = fills - 1; i != 0 && value; --i) {
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ret[i] = Table10[value % 10];
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value /= 10;
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}
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} else {
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unsigned int i = 0;
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while (i < 19) {
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if (value >= Compare10[i]) break;
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++i;
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}
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while (i < 19) {
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ret.push_back(Table10[value / Compare10[i]]);
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value %= Compare10[i];
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++i;
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}
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if (ret.empty()) ret = L"0";
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}
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return ret;
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}
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