OPTIMIZED ENTERPRISE ANONIX

#ifndef OMG_OPTIMIZED_CTYPE_H_
#define OMG_OPTIMIZED_CTYPE_H_

/**
 *                        __ _   _  ____  _   _ _ _  _
 *                       /  |  \| |/ __ \|  \| | | \/ /
 *                      /   |   \ | |  | |   \ | |\  /
 *                     /  . | |\  | |__| | |\  | |/  \
 *                    /__/|_|_| \_|\____/|_| \_|_|_/\_\
 *       
 *                       OPTIMIZED ANONIX INTERFACES
 *
 *  -------------------------------------------------------------------------
 *
 *  Optimized branchless ctype facilities using bitwise operations. Assumes a
 *  fixed ASCII (ANSI_X3.110-1983) code page. Functions are ISO/IEC 9899:1999
 *  (C99) compliant. Requires an ISO/IEC 9899:1999 (C99) compliant compiler.
 * 
 *  Version: 1.666alpha
 *  Bug Reports: strawberryshake [at] 1337 [dot] jp
 */
 
inline int isblank(int c) { return (c == ' ') | (c == '\t') | (c == '\v'); }
inline int iscntrl(int c) { return (c <= 0x1F) | (c == 0x7F); }
inline int isdigit(int c) { return (((unsigned int)c) - ((unsigned int)'0')) <= ((unsigned int)('9' - '0')); }
inline int isgraph(int c) { return (((unsigned int)c) - ((unsigned int)'!')) <= ((unsigned int)('~' - '!')); }
inline int islower(int c) { return (((unsigned int)c) - ((unsigned int)'a')) <= ((unsigned int)('z' - 'a')); }
inline int isprint(int c) { return (((unsigned int)c) - ((unsigned int)' ')) <= ((unsigned int)('~' - ' ')); }
inline int isupper(int c) { return (((unsigned int)c) - ((unsigned int)'A')) <= ((unsigned int)('Z' - 'A')); }
inline int isalpha(int c) { return ::hrc::islower(c) | ::hrc::isupper(c); }
inline int isalnum(int c) { return ::hrc::islower(c) | ::hrc::isupper(c) | ::hrc::isdigit(c); }
inline int ispunct(int c) { return ~(::hrc::islower(c) | ::hrc::isupper(c) | ::hrc::isdigit(c)); }
inline int isspace(int c) { return ::hrc::isblank(c) | (c == '\f') | (c == '\n') | (c == '\r'); }

inline int isxdigit(int c) {
    return ::hrc::isdigit(c) |
        ((((unsigned int)c) - ((unsigned int)'a')) <= ((unsigned int)('f' - 'a'))) |
        ((((unsigned int)c) - ((unsigned int)'A')) <= ((unsigned int)('F' - 'A')));
}

inline int tolower(int c) {
    unsigned int upper = (unsigned int)::hrc::isupper(c);
    return (int)((((~upper) + 1) & ((unsigned int)(c - 'A' + 'a'))) | ((~(upper - 1)) & ((unsigned int)c)));
}

inline int toupper(int c) {
    unsigned int lower = (unsigned int)::hrc::islower(c);
    return (int)((((~lower) + 1) & ((unsigned int)(c - 'a' + 'A'))) | ((~(lower - 1)) & ((unsigned int)c)));
}

#endif

>>16
It is! But if you haven't noticed, Microsoft just released a Kinect SDK for Windows, is merging Windows Live for Games and the XBox Live Marketplace, and there are rumors of packaging an XBox 360 emulator with Windows 8 to ship sometime next year. Kinect will probably be reborn on their next console. After all, there's an endless supply of casuals and gullible parents who just can't wait for the next Kinect title!