// ISO C++ date and time declarations #include #include #pragma once // Get rid of those macros defined in in lieu of real functions. #undef clock #undef difftime #undef mktime #undef time #undef asctime #undef ctime #undef gmtime #undef localtime #undef strftime namespace std { using ::clock_t; using ::time_t; using ::tm; using ::clock; using ::difftime; using ::mktime; using ::time; using ::asctime; using ::ctime; using ::gmtime; using ::localtime; using ::strftime; }