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authorLioncash <mathew1800@gmail.com>2018-07-22 21:47:37 +0200
committerLioncash <mathew1800@gmail.com>2018-07-22 22:39:21 +0200
commit9d331221970a26a2d2f68fe51c0249b62fafd0a2 (patch)
treeac87eddd414ff4cbd1983070ebcf92e32c4973d4
parentstring_util: Use emplace_back() in SplitString() instead of push_back() (diff)
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-rw-r--r--src/common/string_util.cpp42
1 files changed, 22 insertions, 20 deletions
diff --git a/src/common/string_util.cpp b/src/common/string_util.cpp
index 6737655a5..1f0456aee 100644
--- a/src/common/string_util.cpp
+++ b/src/common/string_util.cpp
@@ -220,31 +220,37 @@ std::u16string UTF8ToUTF16(const std::string& input) {
}
static std::wstring CPToUTF16(u32 code_page, const std::string& input) {
- auto const size =
+ const auto size =
MultiByteToWideChar(code_page, 0, input.data(), static_cast<int>(input.size()), nullptr, 0);
- std::wstring output;
- output.resize(size);
+ if (size == 0) {
+ return L"";
+ }
+
+ std::wstring output(size, L'\0');
- if (size == 0 ||
- size != MultiByteToWideChar(code_page, 0, input.data(), static_cast<int>(input.size()),
- &output[0], static_cast<int>(output.size())))
+ if (size != MultiByteToWideChar(code_page, 0, input.data(), static_cast<int>(input.size()),
+ &output[0], static_cast<int>(output.size()))) {
output.clear();
+ }
return output;
}
std::string UTF16ToUTF8(const std::wstring& input) {
- auto const size = WideCharToMultiByte(CP_UTF8, 0, input.data(), static_cast<int>(input.size()),
+ const auto size = WideCharToMultiByte(CP_UTF8, 0, input.data(), static_cast<int>(input.size()),
nullptr, 0, nullptr, nullptr);
+ if (size == 0) {
+ return "";
+ }
- std::string output;
- output.resize(size);
+ std::string output(size, '\0');
- if (size == 0 ||
- size != WideCharToMultiByte(CP_UTF8, 0, input.data(), static_cast<int>(input.size()),
- &output[0], static_cast<int>(output.size()), nullptr, nullptr))
+ if (size != WideCharToMultiByte(CP_UTF8, 0, input.data(), static_cast<int>(input.size()),
+ &output[0], static_cast<int>(output.size()), nullptr,
+ nullptr)) {
output.clear();
+ }
return output;
}
@@ -265,8 +271,6 @@ std::string CP1252ToUTF8(const std::string& input) {
template <typename T>
static std::string CodeToUTF8(const char* fromcode, const std::basic_string<T>& input) {
- std::string result;
-
iconv_t const conv_desc = iconv_open("UTF-8", fromcode);
if ((iconv_t)(-1) == conv_desc) {
LOG_ERROR(Common, "Iconv initialization failure [{}]: {}", fromcode, strerror(errno));
@@ -278,8 +282,7 @@ static std::string CodeToUTF8(const char* fromcode, const std::basic_string<T>&
// Multiply by 4, which is the max number of bytes to encode a codepoint
const size_t out_buffer_size = 4 * in_bytes;
- std::string out_buffer;
- out_buffer.resize(out_buffer_size);
+ std::string out_buffer(out_buffer_size, '\0');
auto src_buffer = &input[0];
size_t src_bytes = in_bytes;
@@ -304,6 +307,7 @@ static std::string CodeToUTF8(const char* fromcode, const std::basic_string<T>&
}
}
+ std::string result;
out_buffer.resize(out_buffer_size - dst_bytes);
out_buffer.swap(result);
@@ -313,8 +317,6 @@ static std::string CodeToUTF8(const char* fromcode, const std::basic_string<T>&
}
std::u16string UTF8ToUTF16(const std::string& input) {
- std::u16string result;
-
iconv_t const conv_desc = iconv_open("UTF-16LE", "UTF-8");
if ((iconv_t)(-1) == conv_desc) {
LOG_ERROR(Common, "Iconv initialization failure [UTF-8]: {}", strerror(errno));
@@ -326,8 +328,7 @@ std::u16string UTF8ToUTF16(const std::string& input) {
// Multiply by 4, which is the max number of bytes to encode a codepoint
const size_t out_buffer_size = 4 * sizeof(char16_t) * in_bytes;
- std::u16string out_buffer;
- out_buffer.resize(out_buffer_size);
+ std::u16string out_buffer(out_buffer_size, char16_t{});
char* src_buffer = const_cast<char*>(&input[0]);
size_t src_bytes = in_bytes;
@@ -352,6 +353,7 @@ std::u16string UTF8ToUTF16(const std::string& input) {
}
}
+ std::u16string result;
out_buffer.resize(out_buffer_size - dst_bytes);
out_buffer.swap(result);