<cctype>
#include <ctype.h> namespace std { using ::isalnum; using ::isalpha; using ::iscntrl; using ::isdigit; using ::isgraph; using ::islower; using ::isprint; using ::ispunct; using ::isspace; using ::isupper; using ::isxdigit; using ::tolower; using ::toupper; };
Include the standard header <cctype>
to effectively include the standard header
<ctype.h>
within the
std
namespace.
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Copyright © 1992-1996 by P.J. Plauger. All rights reserved.