| #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 */ |