Epson S5U1C17001C, Руководство пользователя

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S5U1C17001C ManUal
EPSOn
7-13
(C COMPilEr PaCkagE fOr S1C17 faMily) (Ver. 1.5.0)
7 liBrary
7
Library
Character functions
The table below lists the character functions included in
libc.a
.
Table 7.3.2.6 Character functions
Header file:
string.h
function functionality reentrant notes
void * memchr (const void *s, int c, size_t
n);
Return specified character position in the
storage area. Reentrant
int memcmp (char *s1, char *s2, int n); Compare storage areas. Reentrant
void * memcpy (char *s1, char *s2, int n); Copy storage area. Reentrant
void * memmove (char *s1, char *s2, int n); Copy the storage area (overlapping allowed). Reentrant
void * memset (char *s, int c, int n);
Set character in the storage area. Reentrant
char * strcat (char *s1, char *s2); Concatenate character strings. Reentrant
char * strchr (char *s, int c); Return specified character position found first
in the character string. Reentrant
int strcmp (char *s1, char *s2); Compare character strings. Reentrant
char * strcpy (char *s1, char *s2);
Copy character string. Reentrant
size_t * strcspn (char *s1, char *s2); Return number of characters from the
beginning of the character string until the
specified character appears (multiple choices). Reentrant
char * strerror (int code); Return error message character string. Reentrant
size_t strlen (char *s); Return length of character string. Reentrant
size_t strncat (char *s1, char *s2, int n);
Concatenate character strings (number of
characters specified). Reentrant
int strncmp (char *s1, char *s2, int n); Compare character strings (number of
characters specified). Reentrant
char * strncpy (char *s1, char *s2, int n); Copy character string (number of characters
specified). Reentrant
char * strpbrk (char *s1, char *s2); Return specified character position (multiple
choices) found first in the character string. Reentrant
char * strrchr (char *s, int c);
Return specified character position found last
in the character string. Reentrant
size_t strspn (char *s1, char *s2); Return number of characters from the
beginning of the character string until the non-
specified character appears (multiple choices). Reentrant
char * strstr (char *s1, char *s2); Return position where the specified character
string appeared first. Reentrant
char * strtok (char *s1, char *s2); Divide the character string into tokens. Nonreentrant Change static
variable.
Character type determination/conversion functions
The table below lists the character type determination/conversion functions included in
libc.a
.
Table 7.3.2.7 Character type determination/conversion functions
Header file:
ctype.h
function functionality reentrant
int isalnum (int c);
Determine character type (decimal or alphabet). Reentrant
int isalpha (int c); Determine character type (alphabet). Reentrant
int iscntrl (int c); Determine character type (control character). Reentrant
int isdigit (int c);
Determine character type (decimal). Reentrant
int isgraph (int c);
Determine character type (graphic character). Reentrant
int islower (int c); Determine character type (lowercase alphabet). Reentrant
int isprint (int c); Determine character type (printable character). Reentrant
int ispunct (int c); Determine character type (delimiter). Reentrant
int isspace (int c);
Determine character type (null character). Reentrant
int isupper (int c); Determine character type (uppercase alphabet). Reentrant
int isxdigit (int c); Determine character type (hexadecimal). Reentrant
int tolower (int c); Convert character type (uppercase alphabet
→
lowercase). Reentrant
int toupper (int c);
Convert character type (lowercase alphabet
→
uppercase). Reentrant