Function fwrite_orDie

freebsd/contrib/zstd/examples/common.h:146–153

! fwrite_orDie() : * * Write sizeToWrite bytes to a file pointed to by file, obtaining * them from a location given by buffer. * * Note: This function will send an error to stderr and exit if it * cannot write data to the given file pointer. * * @return The number of bytes written. */

 * @return The number of bytes written.
 */
static size_t fwrite_orDie(const void* buffer, size_t sizeToWrite, FILE* file)
{
    size_t const writtenSize = fwrite(buffer, 1, sizeToWrite, file);
    if (writtenSize == sizeToWrite) return sizeToWrite;   /* good */
    /* error */
    perror("fwrite");
    exit(ERROR_fwrite);
}

/*! malloc_orDie() :
 * Allocate memory.