Defines the macros traditionally defined in the Standard C library header <string.h>.
#if <TRADITIONAL C HEADERS>
#include <string.h>
namespace std {
using ::memchr;
using ::memcmp;
using ::memcpy;
using ::memmove;
using ::memset;
using ::size_t;
using ::strcat;
using ::strchr;
using ::strcmp;
using ::strcoll;
using ::strcpy;
using ::strcspn;
using ::strerror;
using ::strlen;
using ::strncat;
using ::strncmp;
using ::strncpy;
using ::strpbrk;
using ::strrchr;
using ::strspn;
using ::strstr;
using ::strtok;
using ::strxfrm;
}
#endif
Remarks
Including this header also ensures that the names declared with external linkage in the Standard C library header are declared in the std namespace. In this implementation, the names may or may not also be declared in the global namespace, depending on the specific translation environment.