#ifndef FLIB_UTIL_H_

#define FLIB_UTIL_H_

#include <stddef.h>

#include <stdarg.h>

/**

 * Prints a format string to a newly allocated buffer of the required size.

 * Parameters are like those for printf. Returns NULL on error.

 *

 * Returned buffer must be free()d

 */

char *flib_asprintf(const char *fmt, ...);

/**

 * Exactly as flib_asprintf, but accepts va_args.

 */

char *flib_vasprintf(const char *fmt, va_list args);

/**

 * Return a duplicate of the provided string, or NULL if an error

 * occurs or if str is already NULL.

 *

 * Returned buffer must be free()d

 */

char *flib_strdupnull(const char *str);

/**

 * Return a duplicate of the provided buffer, or NULL if an error

 * occurs or if buf is already NULL or if size is 0.

 *

 * Returned buffer must be free()d

 */

void *flib_bufdupnull(const void *buf, size_t size);

#endif