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#ifndef _CTYPE_H
#define _CTYPE_H
/** @file
*
* Character types
*/
#define isdigit(c) ((c & 0x04) != 0)
#define islower(c) ((c & 0x02) != 0)
//#define isspace(c) ((c & 0x20) != 0)
#define isupper(c) ((c & 0x01) != 0)
static inline unsigned char tolower(unsigned char c)
{
if (isupper(c))
c -= 'A'-'a';
return c;
}
static inline unsigned char toupper(unsigned char c)
{
if (islower(c))
c -= 'a'-'A';
return c;
}
#endif /* _CTYPE_H */
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