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Replace &vec[0] with vec.data()

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When the vector is empty, using `&vec[0]` involves undefined behaviour. While that works fine most of the time, Flatpak builds aborted on a failed `__builtin_expect`.

I searched for such occurences across the codebase with the regex `(?<!&)&\w+\[0\]` and fixed those that would potentially cause issues.
This commit is contained in:
Pengfei
2021-07-14 17:01:14 +08:00
parent 5241032fc5
commit f85bde3ca3
3 changed files with 7 additions and 6 deletions
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9
src/core/file_sys/ncch_container.cpp
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@ -554,15 +554,16 @@ Loader::ResultStatus NCCHContainer::LoadSectionExeFS(const char* name, std::vect
// Decompress .code section...
u32 decompressed_size = LZSS_GetDecompressedSize(&temp_buffer[0], section.size);
buffer.resize(decompressed_size);
if (!LZSS_Decompress(&temp_buffer[0], section.size, &buffer[0], decompressed_size))
if (!LZSS_Decompress(&temp_buffer[0], section.size, buffer.data(),
decompressed_size))
return Loader::ResultStatus::ErrorInvalidFormat;
} else {
// Section is uncompressed...
buffer.resize(section.size);
if (exefs_file.ReadBytes(&buffer[0], section.size) != section.size)
if (exefs_file.ReadBytes(buffer.data(), section.size) != section.size)
return Loader::ResultStatus::Error;
if (is_encrypted) {
dec.ProcessData(&buffer[0], &buffer[0], section.size);
dec.ProcessData(buffer.data(), buffer.data(), section.size);
}
}
@ -641,7 +642,7 @@ Loader::ResultStatus NCCHContainer::LoadOverrideExeFSSection(const char* name,
buffer.resize(section_size);
section_file.Seek(0, SEEK_SET);
if (section_file.ReadBytes(&buffer[0], section_size) == section_size) {
if (section_file.ReadBytes(buffer.data(), section_size) == section_size) {
LOG_WARNING(Service_FS, "File {} overriding built-in ExeFS file", path);
return Loader::ResultStatus::Success;
}