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/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef CTYPE_H
#define CTYPE_H
static inline int isspace(int c)
{
switch (c) {
case ' ': case '\f': case '\n':
case '\r': case '\t': case '\v':
return 1;
default:
return 0;
}
}
static inline int isprint(int c)
{
return c >= ' ' && c <= '~';
}
static inline int isdigit(int c)
{
return (c >= '0' && c <= '9');
}
static inline int isxdigit(int c)
{
return ((c >= '0' && c <= '9') ||
(c >= 'a' && c <= 'f') ||
(c >= 'A' && c <= 'F'));
}
static inline int isupper(int c)
{
return (c >= 'A' && c <= 'Z');
}
static inline int islower(int c)
{
return (c >= 'a' && c <= 'z');
}
static inline int toupper(int c)
{
if (islower(c))
c -= 'a'-'A';
return c;
}
static inline int tolower(int c)
{
if (isupper(c))
c -= 'A'-'a';
return c;
}
#endif /* CTYPE_H */
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