Function saveFile_orDie

freebsd/contrib/zstd/examples/common.h:220–232

! saveFile_orDie() : * * Save buffSize bytes to a given file path, obtaining them from a location pointed * to by buff. * * Note: This function will send an error to stderr and exit if it * cannot write to a given file. */

 * cannot write to a given file.
 */
static void saveFile_orDie(const char* fileName, const void* buff, size_t buffSize)
{
    FILE* const oFile = fopen_orDie(fileName, "wb");
    size_t const wSize = fwrite(buff, 1, buffSize, oFile);
    if (wSize != (size_t)buffSize) {
        fprintf(stderr, "fwrite: %s : %s \n", fileName, strerror(errno));
        exit(ERROR_fwrite);
    }
    if (fclose(oFile)) {
        perror(fileName);
        exit(ERROR_fclose);
    }
}

#endif