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https://github.com/zebrajr/pytorch.git
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582485bf0f
Apply clang-tidy readability-data-pointer fixits. This essentially uses the data() method when possible instead of the less readable `&vec[0]` to get the address of the underlying backing implementation. Not only is this more readable, it is safer as it allows you to retrieve the pointer even when the std::vector or std::string is empty without throwing an index error. Pull Request resolved: https://github.com/pytorch/pytorch/pull/92755 Approved by: https://github.com/ezyang
100 lines
2.9 KiB
C++
100 lines
2.9 KiB
C++
#include <c10/util/Exception.h>
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#include <c10/util/StringUtil.h>
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#include <cstring>
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#include <string>
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namespace c10 {
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namespace detail {
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std::string StripBasename(const std::string& full_path) {
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const char kSeparator = '/';
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size_t pos = full_path.rfind(kSeparator);
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if (pos != std::string::npos) {
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return full_path.substr(pos + 1, std::string::npos);
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} else {
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return full_path;
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}
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}
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std::string ExcludeFileExtension(const std::string& file_name) {
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const char sep = '.';
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auto end_index = file_name.find_last_of(sep) == std::string::npos
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? -1
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: file_name.find_last_of(sep);
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return file_name.substr(0, end_index);
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}
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} // namespace detail
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std::ostream& operator<<(std::ostream& out, const SourceLocation& loc) {
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out << loc.function << " at " << loc.file << ":" << loc.line;
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return out;
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}
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size_t ReplaceAll(std::string& s, c10::string_view from, c10::string_view to) {
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if (from.empty()) {
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return 0;
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}
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size_t numReplaced = 0;
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std::string::size_type last_pos = 0u;
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std::string::size_type cur_pos = 0u;
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std::string::size_type write_pos = 0u;
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const c10::string_view input(s);
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if (from.size() >= to.size()) {
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// If the replacement string is not larger than the original, we
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// can do the replacement in-place without allocating new storage.
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char* s_data = s.data();
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while ((cur_pos = s.find(from.data(), last_pos, from.size())) !=
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std::string::npos) {
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++numReplaced;
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// Append input between replaced sub-strings
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if (write_pos != last_pos) {
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std::copy(s_data + last_pos, s_data + cur_pos, s_data + write_pos);
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}
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write_pos += cur_pos - last_pos;
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// Append the replacement sub-string
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std::copy(to.begin(), to.end(), s_data + write_pos);
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write_pos += to.size();
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// Start search from next character after `from`
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last_pos = cur_pos + from.size();
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}
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// Append any remaining input after replaced sub-strings
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if (write_pos != last_pos) {
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std::copy(s_data + last_pos, s_data + input.size(), s_data + write_pos);
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write_pos += input.size() - last_pos;
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s.resize(write_pos);
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}
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return numReplaced;
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}
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// Otherwise, do an out-of-place replacement in a temporary buffer
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std::string buffer;
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while ((cur_pos = s.find(from.data(), last_pos, from.size())) !=
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std::string::npos) {
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++numReplaced;
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// Append input between replaced sub-strings
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buffer.append(input.begin() + last_pos, input.begin() + cur_pos);
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// Append the replacement sub-string
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buffer.append(to.begin(), to.end());
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// Start search from next character after `from`
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last_pos = cur_pos + from.size();
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}
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if (numReplaced == 0) {
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// If nothing was replaced, don't modify the input
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return 0;
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}
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// Append any remaining input after replaced sub-strings
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buffer.append(input.begin() + last_pos, input.end());
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s = std::move(buffer);
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return numReplaced;
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}
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} // namespace c10
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