CODEWITHSUNDEEP
c++regexc++17
original.roland
original.roland

Reputation: 700

C++ regex_search with match on a C style array

I've got a C styled array (not necessarily null terminated). I'd like to search in it with regex. My code is the following:

const void* Search(const char* startAddress, const char* endAddress, std::regex *re)
{
    std::smatch match;
    auto ret = std::regex_search(startAddress, endAddress, *re);

In its current form it's working perfectly, however I'd like to know where it found that particular pattern. As soon as I add the match as a parameter, the compiler is unable to find a suiting overloaded function. I tried making a string_view out of the region, but the compiler couldn't find any suitable overloaded for those iterators as well.

I'm specifically looking for std::regex solution. How should I use it?

Upvotes: 2

Views: 755

Answers (1)

Jarod42
Jarod42

Reputation: 217850

You need std::cmatch (for const char*) instead of std::smatch (for std::string).

std::cmatch match;
auto ret = std::regex_search(startAddress, endAddress, match, *re);

See std::match_results

Upvotes: 7

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