ctype.h

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/* ctype.h */
 
/*
 * Copyright (c) 2015 Intel Corporation.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_LIB_LIBC_MINIMAL_INCLUDE_CTYPE_H_
#define ZEPHYR_LIB_LIBC_MINIMAL_INCLUDE_CTYPE_H_
 
#ifdef __cplusplus
extern "C" {
#endif
 
static inline int isupper(int a)
{
        return (('A' <= a) && (a <= 'Z'));
}
 
static inline int isalpha(int c)
{
        /* force to lowercase */
        c |= 32;
 
        return (('a' <= c) && (c <= 'z'));
}
 
static inline int isblank(int c)
{
        return ((c == ' ') || (c == '\t'));
}
 
static inline int isspace(int c)
{
        return ((c == ' ') || (('\t' <= c) && (c <= '\r')));
}
 
static inline int isgraph(int c)
{
        return ((' ' < c) && (c <= '~'));
}
 
static inline int isprint(int c)
{
        return ((' ' <= c) && (c <= '~'));
}
 
static inline int isdigit(int a)
{
        return (('0' <= a) && (a <= '9'));
}
 
static inline int islower(int c)
{
        return (('a' <= c) && (c <= 'z'));
}
 
static inline int isxdigit(int a)
{
        if (isdigit(a) != 0) {
                return 1;
        }
 
        /* force to lowercase */
        a |= 32;
 
        return (('a' <= a) && (a <= 'f'));
}
 
static inline int tolower(int chr)
{
        return (chr >= 'A' && chr <= 'Z') ? (chr + 32) : (chr);
}
 
static inline int toupper(int chr)
{
        return ((chr >= 'a' && chr <= 'z') ? (chr - 32) : (chr));
}
 
static inline int isalnum(int chr)
{
        return (isalpha(chr) || isdigit(chr));
}
 
static inline int ispunct(int c)
{
        return (isgraph(c) && !isalnum(c));
}
 
static inline int iscntrl(int c)
{
        return ((((unsigned int)c) <= 31U) || (((unsigned int)c) == 127U));
}
 
#ifdef __cplusplus
}
#endif
 
#endif  /* ZEPHYR_LIB_LIBC_MINIMAL_INCLUDE_CTYPE_H_ */