GBDK 2020 Docs  4.3.0
API Documentation for GBDK 2020
ctype.h
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1 
4 #ifndef _CTYPE_H
5 #define _CTYPE_H
6 
7 #include <types.h>
8 #include <stdbool.h>
9 
13 bool isalpha(char c);
14 
18 bool isupper(char c);
19 
23 bool islower(char c);
24 
28 bool isdigit(char c);
29 
33 bool isspace(char c);
34 
38 char toupper(char c);
39 
43 char tolower(char c);
44 
45 #endif /* _CTYPE_H */
char c
Definition: string.h:20
bool islower(char c)
char tolower(char c)
bool isupper(char c)
bool isspace(char c)
char toupper(char c)
bool isalpha(char c)
bool isdigit(char c)