Is this C++11 regex error me or the compiler?

by

Update: <regex> is now implemented and released in GCC 4.9.0

Old answer:

ECMAScript syntax accepts [0-9], \s, \w, etc, see ECMA-262 (15.10). Here’s an example with boost::regex that also uses the ECMAScript syntax by default:

#include <boost/regex.hpp>

int main(int argc, char* argv[]) {
  using namespace boost;
  regex e("[0-9]");
  return argc > 1 ? !regex_match(argv[1], e) : 2;
}

It works:

$ g++ -std=c++0x *.cc -lboost_regex && ./a.out 1

According to the C++11 standard (28.8.2) basic_regex() uses regex_constants::ECMAScript flag by default so it must understand this syntax.

Is this C++11 regex error me or the compiler?

gcc-4.6.1 doesn’t support c++11 regular expressions (28.13).

More Related Contents:

  1. Is gcc 4.8 or earlier buggy about regular expressions?
  2. How does #include work in C++? [duplicate]
  3. Is it a conforming compiler extension to treat non-constexpr standard library functions as constexpr?
  4. Error “undefined reference to ‘std::cout'”
  5. What does std::match_results::size return?
  6. Difference between std::regex_match & std::regex_search?
  7. when g++ static link pthread, cause Segmentation fault, why?
  8. Using regex lookbehinds in C++11
  9. Is std::string ref-counted in GCC 4.x / C++11?
  10. No matches with c++11 regex [duplicate]
  11. error: use of deleted function
  12. What is the difference between MinGW, MinGW-w64 and MinGW-builds?
  13. std::put_time implementation status in GCC?
  14. Overloaded lambdas in C++ and differences between clang and gcc
  15. GNU C++ how to check when -std=c++0x is in effect?
  16. How to enable experimental C++11 concurrency features in MinGW?
  17. C++11 Regex Matching [duplicate]
  18. Range based for-loop on array passed to non-main function
  19. Is there a compiler bug exposed by my implementation of an is_complete type trait?
  20. c++11 regex slower than python
  21. std::thread error (thread not member of std)
  22. Difference between regex_match and regex_search?
  23. Forcing or preventing use of a particular minor version of libstdc++
  24. Can nullptr be emulated in gcc?
  25. Should std::unique_ptr be permitted
  26. Multiple “could not be resolved” problems using Eclipse with minGW
  27. const auto std::initializer_list difference between Clang and GCC
  28. Undefined reference to process(std::__cxx11::basic_string … ) when compiling affdex linux sample applications
  29. C++ regex_match not working
  30. How to assert if a std::mutex is locked?

Leave a Comment