dir.cpp

#include "dir.h"
#include <arrayfire.h>

std::vector<std::string> get_tiff_files(std::string dir) {
  std::regex re ("*\\.tiff?");
  return Dir::re_filter(Dir::get_files_in_dir(dir), re);
}

dir.h

#pragma once

#include <windows.h>
#include <string>
#include <vector>
// #include <cctype>
#include <regex>
// #include <cstdio>

namespace Dir {

std::vector<std::string> get_files_in_dir(std::string folder) {
    std::vector<std::string> names;
    std::string search_path = folder + "*";
    WIN32_FIND_DATA fd;
    HANDLE hFind = ::FindFirstFile(search_path.c_str(), &fd);
    if(hFind != INVALID_HANDLE_VALUE) {
        do {
            // read all (real) files in current folder
            // , delete '!' read other 2 default folder . and ..
            if(! (fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ) {
                names.push_back(folder + fd.cFileName);
            }
        } while(::FindNextFile(hFind, &fd));
        ::FindClose(hFind);
    }
    return names;
}

std::vector<std::string> re_filter(std::vector<std::string> invec, std::regex rx) {
  std::vector<std::string> out;
  for (std::string s : invec) {
    if (std::regex_search(s, rx)) {
      out.push_back(s);
    }
  }
  return out;
}

// std::vector<std::string> get_tiff_files(std::string dir) {
//   std::regex re ("*\\.tiff?");
//   return re_filter(get_files_in_dir(dir), re);
// }

}

errors

dir.cpp
d:\program files\arrayfire v3\include\af/algorithm.h(86): error C2059: syntax error: 'const'
d:\program files\arrayfire v3\include\af/algorithm.h(86): error C2059: syntax error: ')'
d:\program files\arrayfire v3\include\af/algorithm.h(100): error C2059: syntax error: 'const'
d:\program files\arrayfire v3\include\af/algorithm.h(100): error C2059: syntax error: ')'
d:\program files\arrayfire v3\include\af/algorithm.h(200): warning C4003: not enough actual parameters for macro 'min'
d:\program files\arrayfire v3\include\af/algorithm.h(200): error C2988: unrecognizable template declaration/definition
d:\program files\arrayfire v3\include\af/algorithm.h(200): error C2059: syntax error: 'const'
d:\program files\arrayfire v3\include\af/algorithm.h(200): error C2059: syntax error: ')'
d:\program files\arrayfire v3\include\af/algorithm.h(212): warning C4003: not enough actual parameters for macro 'max'
d:\program files\arrayfire v3\include\af/algorithm.h(212): error C2988: unrecognizable template declaration/definition
d:\program files\arrayfire v3\include\af/algorithm.h(212): error C2059: syntax error: ')'
d:\program files\arrayfire v3\include\af/algorithm.h(264): warning C4002: too many actual parameters for macro 'min'
d:\program files\arrayfire v3\include\af/algorithm.h(264): error C2143: syntax error: missing ')' before '&'
d:\program files\arrayfire v3\include\af/algorithm.h(264): error C2143: syntax error: missing ';' before '&'
d:\program files\arrayfire v3\include\af/algorithm.h(264): error C2182: 'array': illegal use of type 'void'
d:\program files\arrayfire v3\include\af/algorithm.h(264): error C2059: syntax error: ')'
d:\program files\arrayfire v3\include\af/algorithm.h(264): error C2143: syntax error: missing ';' before '<'
d:\program files\arrayfire v3\include\af/algorithm.h(264): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/algorithm.h(264): error C2530: 'af::val': references must be initialized
d:\program files\arrayfire v3\include\af/algorithm.h(264): warning C4273: 'af::array': inconsistent dll linkage
d:\program files\arrayfire v3\include\af/algorithm.h(264): note: see previous definition of 'array'
d:\program files\arrayfire v3\include\af/algorithm.h(264): error C2530: 'af::idx': references must be initialized
d:\program files\arrayfire v3\include\af/algorithm.h(280): warning C4002: too many actual parameters for macro 'max'
d:\program files\arrayfire v3\include\af/algorithm.h(280): error C2143: syntax error: missing ')' before '&'
d:\program files\arrayfire v3\include\af/algorithm.h(280): error C2143: syntax error: missing ';' before '&'
d:\program files\arrayfire v3\include\af/algorithm.h(280): error C2182: 'array': illegal use of type 'void'
d:\program files\arrayfire v3\include\af/algorithm.h(280): warning C4273: 'af::array': inconsistent dll linkage
d:\program files\arrayfire v3\include\af/algorithm.h(264): note: see previous definition of 'array'
d:\program files\arrayfire v3\include\af/algorithm.h(280): error C2059: syntax error: ')'
d:\program files\arrayfire v3\include\af/algorithm.h(280): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/algorithm.h(280): error C2086: 'int &af::val': redefinition
d:\program files\arrayfire v3\include\af/algorithm.h(264): note: see declaration of 'af::val'
d:\program files\arrayfire v3\include\af/algorithm.h(280): error C2530: 'af::val': references must be initialized
d:\program files\arrayfire v3\include\af/algorithm.h(280): error C2059: syntax error: '>'
d:\program files\arrayfire v3\include\af/algorithm.h(280): error C2086: 'int &af::idx': redefinition
d:\program files\arrayfire v3\include\af/algorithm.h(264): note: see declaration of 'af::idx'
d:\program files\arrayfire v3\include\af/algorithm.h(280): error C2530: 'af::idx': references must be initialized
d:\program files\arrayfire v3\include\af/algorithm.h(293): warning C4002: too many actual parameters for macro 'min'
d:\program files\arrayfire v3\include\af/algorithm.h(293): error C2988: unrecognizable template declaration/definition
d:\program files\arrayfire v3\include\af/algorithm.h(293): error C2143: syntax error: missing ')' before '*'
d:\program files\arrayfire v3\include\af/algorithm.h(293): error C2143: syntax error: missing ';' before '*'
d:\program files\arrayfire v3\include\af/algorithm.h(293): error C2182: 'T': illegal use of type 'void'
d:\program files\arrayfire v3\include\af/algorithm.h(293): error C2365: 'T': redefinition; previous definition was 'template parameter'
d:\program files\arrayfire v3\include\af/algorithm.h(293): note: see declaration of 'T'
d:\program files\arrayfire v3\include\af/algorithm.h(293): error C2059: syntax error: ')'
d:\program files\arrayfire v3\include\af/algorithm.h(293): error C2143: syntax error: missing ';' before '<'
d:\program files\arrayfire v3\include\af/algorithm.h(293): error C2062: type 'unsigned int' unexpected
d:\program files\arrayfire v3\include\af/algorithm.h(306): warning C4002: too many actual parameters for macro 'max'
d:\program files\arrayfire v3\include\af/algorithm.h(306): error C2062: type 'unsigned int' unexpected
d:\program files\arrayfire v3\include\af/algorithm.h(306): error C2059: syntax error: ')'
d:\program files\arrayfire v3\include\af/algorithm.h(317): error C2146: syntax error: missing ';' before identifier 'accum'
d:\program files\arrayfire v3\include\af/algorithm.h(317): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/algorithm.h(317): error C2988: unrecognizable template declaration/definition
d:\program files\arrayfire v3\include\af/algorithm.h(317): error C2143: syntax error: missing ',' before '&'
d:\program files\arrayfire v3\include\af/algorithm.h(331): error C2146: syntax error: missing ';' before identifier 'scan'
d:\program files\arrayfire v3\include\af/algorithm.h(331): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/algorithm.h(331): error C2988: unrecognizable template declaration/definition
d:\program files\arrayfire v3\include\af/algorithm.h(331): error C2143: syntax error: missing ',' before '&'
d:\program files\arrayfire v3\include\af/algorithm.h(345): error C2146: syntax error: missing ';' before identifier 'scanByKey'
d:\program files\arrayfire v3\include\af/algorithm.h(345): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/algorithm.h(345): error C2988: unrecognizable template declaration/definition
d:\program files\arrayfire v3\include\af/algorithm.h(345): error C2143: syntax error: missing ',' before '&'
d:\program files\arrayfire v3\include\af/algorithm.h(356): error C2146: syntax error: missing ';' before identifier 'where'
d:\program files\arrayfire v3\include\af/algorithm.h(356): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/algorithm.h(356): error C2988: unrecognizable template declaration/definition
d:\program files\arrayfire v3\include\af/algorithm.h(356): error C2143: syntax error: missing ',' before '&'
d:\program files\arrayfire v3\include\af/algorithm.h(367): error C2146: syntax error: missing ';' before identifier 'diff1'
d:\program files\arrayfire v3\include\af/algorithm.h(367): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/algorithm.h(367): error C2988: unrecognizable template declaration/definition
d:\program files\arrayfire v3\include\af/algorithm.h(367): error C2143: syntax error: missing ',' before '&'
d:\program files\arrayfire v3\include\af/algorithm.h(378): error C2146: syntax error: missing ';' before identifier 'diff2'
d:\program files\arrayfire v3\include\af/algorithm.h(378): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/algorithm.h(378): error C2988: unrecognizable template declaration/definition
d:\program files\arrayfire v3\include\af/algorithm.h(378): error C2143: syntax error: missing ',' before '&'
d:\program files\arrayfire v3\include\af/algorithm.h(390): error C2146: syntax error: missing ';' before identifier 'sort'
d:\program files\arrayfire v3\include\af/algorithm.h(390): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/algorithm.h(390): error C2988: unrecognizable template declaration/definition
d:\program files\arrayfire v3\include\af/algorithm.h(390): error C2143: syntax error: missing ',' before '&'
d:\program files\arrayfire v3\include\af/algorithm.h(404): error C2182: 'sort': illegal use of type 'void'
d:\program files\arrayfire v3\include\af/algorithm.h(404): error C2491: 'af::sort': definition of dllimport data not allowed
d:\program files\arrayfire v3\include\af/algorithm.h(418): error C2182: 'sort': illegal use of type 'void'
d:\program files\arrayfire v3\include\af/algorithm.h(417): error C2374: 'af::sort': redefinition; multiple initialization
d:\program files\arrayfire v3\include\af/algorithm.h(403): note: see declaration of 'af::sort'
d:\program files\arrayfire v3\include\af/algorithm.h(418): error C2491: 'af::sort': definition of dllimport data not allowed
d:\program files\arrayfire v3\include\af/algorithm.h(429): error C2146: syntax error: missing ';' before identifier 'setUnique'
d:\program files\arrayfire v3\include\af/algorithm.h(429): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/algorithm.h(429): error C2988: unrecognizable template declaration/definition
d:\program files\arrayfire v3\include\af/algorithm.h(429): error C2143: syntax error: missing ',' before '&'
d:\program files\arrayfire v3\include\af/algorithm.h(441): error C2146: syntax error: missing ';' before identifier 'setUnion'
d:\program files\arrayfire v3\include\af/algorithm.h(441): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/algorithm.h(441): error C2988: unrecognizable template declaration/definition
d:\program files\arrayfire v3\include\af/algorithm.h(441): error C2143: syntax error: missing ',' before '&'
d:\program files\arrayfire v3\include\af/algorithm.h(453): error C2146: syntax error: missing ';' before identifier 'setIntersect'
d:\program files\arrayfire v3\include\af/algorithm.h(453): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/algorithm.h(453): error C2988: unrecognizable template declaration/definition
d:\program files\arrayfire v3\include\af/algorithm.h(453): error C2143: syntax error: missing ',' before '&'
d:\program files\arrayfire v3\include\af/arith.h(15): error C2989: 'af::array': class template has already been declared as a non-class template
d:\program files\arrayfire v3\include\af/algorithm.h(16): note: see declaration of 'af::array'
d:\program files\arrayfire v3\include\af/arith.h(25): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/arith.h(25): warning C4273: 'af::array': inconsistent dll linkage
d:\program files\arrayfire v3\include\af/algorithm.h(280): note: see previous definition of 'array'
d:\program files\arrayfire v3\include\af/arith.h(28): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/arith.h(28): error C2374: 'af::array': redefinition; multiple initialization
d:\program files\arrayfire v3\include\af/arith.h(25): note: see declaration of 'af::array'
d:\program files\arrayfire v3\include\af/arith.h(28): error C2491: 'af::array': definition of dllimport data not allowed
d:\program files\arrayfire v3\include\af/arith.h(31): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/arith.h(31): error C2374: 'af::array': redefinition; multiple initialization
d:\program files\arrayfire v3\include\af/arith.h(25): note: see declaration of 'af::array'
d:\program files\arrayfire v3\include\af/arith.h(31): error C2491: 'af::array': definition of dllimport data not allowed
d:\program files\arrayfire v3\include\af/arith.h(41): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/arith.h(41): error C2374: 'af::array': redefinition; multiple initialization
d:\program files\arrayfire v3\include\af/arith.h(25): note: see declaration of 'af::array'
d:\program files\arrayfire v3\include\af/arith.h(41): error C2491: 'af::array': definition of dllimport data not allowed
d:\program files\arrayfire v3\include\af/arith.h(44): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/arith.h(44): error C2374: 'af::array': redefinition; multiple initialization
d:\program files\arrayfire v3\include\af/arith.h(25): note: see declaration of 'af::array'
d:\program files\arrayfire v3\include\af/arith.h(44): error C2491: 'af::array': definition of dllimport data not allowed
d:\program files\arrayfire v3\include\af/arith.h(47): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/arith.h(47): error C2374: 'af::array': redefinition; multiple initialization
d:\program files\arrayfire v3\include\af/arith.h(25): note: see declaration of 'af::array'
d:\program files\arrayfire v3\include\af/arith.h(47): error C2491: 'af::array': definition of dllimport data not allowed
d:\program files\arrayfire v3\include\af/arith.h(59): error C2146: syntax error: missing ';' before identifier 'clamp'
d:\program files\arrayfire v3\include\af/arith.h(59): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/arith.h(59): error C2988: unrecognizable template declaration/definition
d:\program files\arrayfire v3\include\af/arith.h(59): error C2143: syntax error: missing ',' before '&'
d:\program files\arrayfire v3\include\af/arith.h(64): error C2146: syntax error: missing ';' before identifier 'clamp'
d:\program files\arrayfire v3\include\af/arith.h(64): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/arith.h(64): error C2988: unrecognizable template declaration/definition
d:\program files\arrayfire v3\include\af/arith.h(64): error C2143: syntax error: missing ',' before '&'
d:\program files\arrayfire v3\include\af/arith.h(69): error C2146: syntax error: missing ';' before identifier 'clamp'
d:\program files\arrayfire v3\include\af/arith.h(69): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/arith.h(69): error C2988: unrecognizable template declaration/definition
d:\program files\arrayfire v3\include\af/arith.h(69): error C2143: syntax error: missing ',' before '&'
d:\program files\arrayfire v3\include\af/arith.h(75): error C2146: syntax error: missing ';' before identifier 'clamp'
d:\program files\arrayfire v3\include\af/arith.h(75): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/arith.h(75): error C2988: unrecognizable template declaration/definition
d:\program files\arrayfire v3\include\af/arith.h(75): error C2143: syntax error: missing ',' before '&'
d:\program files\arrayfire v3\include\af/arith.h(87): error C2146: syntax error: missing ';' before identifier 'rem'
d:\program files\arrayfire v3\include\af/arith.h(87): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/arith.h(87): error C2988: unrecognizable template declaration/definition
d:\program files\arrayfire v3\include\af/arith.h(87): error C2143: syntax error: missing ',' before '&'
d:\program files\arrayfire v3\include\af/arith.h(90): error C2146: syntax error: missing ';' before identifier 'rem'
d:\program files\arrayfire v3\include\af/arith.h(90): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/arith.h(90): error C2988: unrecognizable template declaration/definition
d:\program files\arrayfire v3\include\af/arith.h(90): error C2143: syntax error: missing ',' before '&'
d:\program files\arrayfire v3\include\af/arith.h(93): error C2146: syntax error: missing ';' before identifier 'rem'
d:\program files\arrayfire v3\include\af/arith.h(93): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
d:\program files\arrayfire v3\include\af/arith.h(93): error C2988: unrecognizable template declaration/definition
d:\program files\arrayfire v3\include\af/arith.h(93): fatal error C1003: error count exceeds 100; stopping compilation