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#ifndef _UTILS_H
#define _UTILS_H
#include <stdbool.h>
#include <string.h>
#include <stdint.h>
/* Is A == B ? */
#define streq(a,b) (strcmp((a),(b)) == 0)
/* Does A start with B ? */
#define strstarts(a,b) (strncmp((a),(b),strlen(b)) == 0)
/* Does A end in B ? */
static inline bool strends(const char *a, const char *b)
{
if (strlen(a) < strlen(b))
return false;
return streq(a + strlen(a) - strlen(b), b);
}
#ifndef ARRAY_SIZE
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
#endif
void barf(const char *fmt, ...) __attribute__((noreturn));
void barf_perror(const char *fmt, ...) __attribute__((noreturn));
void (*xprintf)(const char *fmt, ...);
#define eprintf(_fmt, _args...) xprintf("[ERR] %s" _fmt, __FUNCTION__, ##_args)
/*
* Mux errno values onto returned pointers.
*/
static inline void *ERR_PTR(long error)
{
return (void *)error;
}
static inline long PTR_ERR(const void *ptr)
{
return (long)ptr;
}
static inline long IS_ERR(const void *ptr)
{
return ((unsigned long)ptr > (unsigned long)-1000L);
}
#endif /* _UTILS_H */
/*
* Local variables:
* c-file-style: "linux"
* indent-tabs-mode: t
* c-indent-level: 8
* c-basic-offset: 8
* tab-width: 8
* End:
*/
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