myconvert.h<\/p>\n
#pragma once\n\nstd::string wstring_to_string(const wchar_t* in); \/\/ wchar_t* -> UTF8 string\nstd::wstring string_to_wstring(const char* in); \/\/ UTF8 char* -> wstring\nvoid string_to_wstring(std::wstring &out, const std::string &in); \/\/ UTF8 string -> wstring\nstd::wstring string_to_wstring(const std::string &in); \/\/ UTF8 string -> wstring<\/code><\/pre>\n <\/p>\n
myconvert.cpp<\/p>\n
#include <string>\n#include "myconvert.h"\n\n\/\/ wchar_t* -> UTF8 string\n\/\/\nstd::string wstring_to_string(const wchar_t* in)\n{\n\tstd::string out;\n\tunsigned int codepoint;\n\twhile (*in != 0)\n\t{\n\t\tif (*in >= 0xd800 && *in <= 0xdbff)\n\t\t{\n\t\t\tcodepoint = ((*in - 0xd800) << 10) + 0x10000;\n\t\t}\n\t\telse\n\t\t{\n\t\t\tif (*in >= 0xdc00 && *in <= 0xdfff)\n\t\t\t\tcodepoint |= *in - 0xdc00;\n\t\t\telse\n\t\t\t\tcodepoint = *in;\n\t\t\tif (codepoint <= 0x7f)\n\t\t\t{\n\t\t\t\tout.append(1, static_cast<char>(codepoint));\n\t\t\t}\n\t\t\telse if (codepoint <= 0x7ff)\n\t\t\t{\n\t\t\t\tout.append(1, static_cast<char>(0xc0 | ((codepoint >> 6) & 0x1f)));\n\t\t\t\tout.append(1, static_cast<char>(0x80 | (codepoint & 0x3f)));\n\t\t\t}\n\t\t\telse if (codepoint <= 0xffff)\n\t\t\t{\n\t\t\t\tout.append(1, static_cast<char>(0xe0 | ((codepoint >> 12) & 0x0f)));\n\t\t\t\tout.append(1, static_cast<char>(0x80 | ((codepoint >> 6) & 0x3f)));\n\t\t\t\tout.append(1, static_cast<char>(0x80 | (codepoint & 0x3f)));\n\t\t\t}\n\t\t\telse\n\t\t\t{\n\t\t\t\tout.append(1, static_cast<char>(0xf0 | ((codepoint >> 18) & 0x07)));\n\t\t\t\tout.append(1, static_cast<char>(0x80 | ((codepoint >> 12) & 0x3f)));\n\t\t\t\tout.append(1, static_cast<char>(0x80 | ((codepoint >> 6) & 0x3f)));\n\t\t\t\tout.append(1, static_cast<char>(0x80 | (codepoint & 0x3f)));\n\t\t\t}\n\t\t}\n\t\t++in;\n\t}\n\treturn out;\n}\n\n\/\/ UTF8 char* -> wstring\n\/\/\nstd::wstring string_to_wstring(const char* in)\n{\n\tstd::wstring out;\n\tunsigned int codepoint;\n\twhile (*in != 0)\n\t{\n\t\tunsigned char ch = static_cast<unsigned char>(*in);\n\t\tif (ch <= 0x7f)\n\t\t\tcodepoint = ch;\n\t\telse if (ch <= 0xbf)\n\t\t\tcodepoint = (codepoint << 6) | (ch & 0x3f);\n\t\telse if (ch <= 0xdf)\n\t\t\tcodepoint = ch & 0x1f;\n\t\telse if (ch <= 0xef)\n\t\t\tcodepoint = ch & 0x0f;\n\t\telse\n\t\t\tcodepoint = ch & 0x07;\n\t\t++in;\n\t\tif (((*in & 0xc0) != 0x80) && (codepoint <= 0x10ffff))\n\t\t{\n\t\t\tif (sizeof(wchar_t) > 2)\n\t\t\t{\n\t\t\t\tout.append(1, static_cast<wchar_t>(codepoint));\n\t\t\t}\n\t\t\telse if (codepoint > 0xffff)\n\t\t\t{\n\t\t\t\tout.append(1, static_cast<wchar_t>(0xd800 + (codepoint >> 10)));\n\t\t\t\tout.append(1, static_cast<wchar_t>(0xdc00 + (codepoint & 0x03ff)));\n\t\t\t}\n\t\t\telse if (codepoint < 0xd800 || codepoint >= 0xe000)\n\t\t\t{\n\t\t\t\tout.append(1, static_cast<wchar_t>(codepoint));\n\t\t\t}\n\t\t}\n\t}\n\treturn out;\n}\n\n\/\/ UTF8 string -> wstring\n\/\/\nvoid string_to_wstring(std::wstring &out, const std::string &in)\n{\n\tstd::wstring w(in.begin(), in.end());\n\n\tout = w;\n}\n\n\/\/ UTF8 string -> wstring\n\/\/\nstd::wstring string_to_wstring(const std::string &in)\n{\n\tstd::wstring w(in.begin(), in.end());\n\n\treturn w;\n}\n<\/code><\/pre>\n <\/p>\n
<\/p>\n
\n <\/p>\n
\n#C++ #UTF-8 #char #wchar_t #wstring #convert<\/p>\n","protected":false},"excerpt":{"rendered":"
myconvert.h #pragma once std::string wstring_to_string( […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[212],"tags":[85,27],"class_list":["post-2246","post","type-post","status-publish","format-standard","hentry","category-coding","tag-c","tag-coding"],"_links":{"self":[{"href":"https:\/\/guerilla.ddns.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/2246","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/guerilla.ddns.net\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/guerilla.ddns.net\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/guerilla.ddns.net\/wp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/guerilla.ddns.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2246"}],"version-history":[{"count":20,"href":"https:\/\/guerilla.ddns.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/2246\/revisions"}],"predecessor-version":[{"id":3384,"href":"https:\/\/guerilla.ddns.net\/wp\/index.php?rest_route=\/wp\/v2\/posts\/2246\/revisions\/3384"}],"wp:attachment":[{"href":"https:\/\/guerilla.ddns.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2246"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/guerilla.ddns.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2246"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/guerilla.ddns.net\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2246"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}