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#ifndef _CTYPE_H
#define _CTYPE_H
/** @file
*
* Character types
*/
FILE_LICENCE ( GPL2_OR_LATER );
#define isdigit(c) ((c) >= '0' && (c) <= '9')
#define islower(c) ((c) >= 'a' && (c) <= 'z')
#define isupper(c) ((c) >= 'A' && (c) <= 'Z')
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;
}
extern int isspace ( int c );
#endif /* _CTYPE_H */
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