1 #include <string.h> 2 validatedatetime(const char * str)3void validatedatetime(const char *str) 4 { 5 const char *templates[] = {"dddd-dd-dd dd:dd", "dddd-dd-dd"}; 6 7 size_t len = strlen(str); 8 9 for (unsigned t = 0; t < 2; t++) { 10 if (len != strlen(templates[t])) { 11 continue; 12 } 13 } 14 } 15