#define EQN_TEST_BULK(EXPR, R1, R2, R3, R4, PASS) \
        { \
          double res[] = { R1, R2, R3, R4 }; \
          iStat += EqnTestBulk(_T(EXPR), res, (PASS)); \
        }

 1 // string::find_last_of
 2 #include <iostream>       // std::cout
 3 #include <string>         // std::string
 4 #inlude <cstddef>         // std::size_t
 5 
 6 void SplitFilename (const std::string& str)
 7 {
 8   std::cout << "Splitting: " << str << '\n';
 9   std::size_t found = str.find_last_of("/\\");
10   std::cout << " path: " << str.substr(0,found) << '\n';
11   std::cout << " file: " << str.substr(found+1) << '\n';
12 }
13 
14 int main ()
15 {
16   std::string str1 ("/usr/bin/man");
17   std::string str2 ("c:\\windows\\winhelp.exe");
18 
19   SplitFilename (str1);
20   SplitFilename (str2);
21 
22   return 0;
23 }

Splitting: /usr/bin/man
 path: /usr/bin
 file: man
Splitting: c:\windows\winhelp.exe
 path: c:\windows
 file: winhelp.exe