<cctype>

Include the standard header <cctype> to effectively include the standard header <ctype.h> within the std namespace.

#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;
#if __IBMCPP_TR1__
namespace tr1 {
using :isblank;
}#endif
}

Note: The Standard C++ library works in conjunction with the headers from the Standard C library. For information about the Standard C library, refer to the documentation that is supplied with the operating system.

Related information

IBM System p and AIX Information Center

Copyright note

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