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// Copyright 2006-2009, Jeff Epler
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#ifndef RTAPI_STRING_H
#define RTAPI_STRING_H
#include <rtapi.h>
#ifdef __cplusplus
#include <assert.h>
#include <type_traits>
#define rtapi_static_assert(a,b) static_assert(a,b)
#define rtapi_is_array(x) (std::is_array<decltype(x)>::value)
#else
#define rtapi_static_assert(a,b) _Static_assert(a,b)
#define rtapi_is_array(x) (!__builtin_types_compatible_p(__typeof__((x)), __typeof__(&(x)[0])))
#endif
#ifdef MODULE
/* Suspect only very early kernels are missing the basic string functions.
To be sure, see what has been implemented by looking in linux/string.h
and {linux_src_dir}/lib/string.c */
#include <linux/string.h>
#include <linux/version.h>
#define rtapi_argv_split argv_split
#define rtapi_argv_free argv_free
#define rtapi_kstrdup(a,b) kstrdup(a,b)
#else
#include <string.h>
#include <rtapi_gfp.h>
RTAPI_BEGIN_DECLS
extern char **rtapi_argv_split(rtapi_gfp_t, const char *argstr, int *argc);
extern void rtapi_argv_free(char **argv);
#define rtapi_kstrdup(a,b) strdup(a)
RTAPI_END_DECLS
#endif
RTAPI_BEGIN_DECLS
static inline size_t rtapi_strlcpy(char *dst, const char *src, size_t size) {
return rtapi_snprintf(dst, size, "%s", src);
}
#define rtapi_strxcpy(dst, src) ({ \
rtapi_static_assert(rtapi_is_array(dst), "dst must be non-const array"); \
rtapi_strlcpy(dst, src, sizeof(dst)); \
})
static inline size_t rtapi_strlcat(char *dst, const char *src, size_t size) {
size_t l = strlen(dst);
return rtapi_snprintf(dst+l, size-l, "%s", src);
}
#define rtapi_strxcat(dst, src) ({ \
rtapi_static_assert(rtapi_is_array(dst), "dst must be non-const array"); \
rtapi_strlcat(dst, src, sizeof(dst)); \
})
RTAPI_END_DECLS
#endif
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