Fix c_simple_example

examples/c_simple_example.c

@@ -5,45 +5,47 @@
 
 #include "rocksdb/c.h"
 
-#include <unistd.h>	// sysconf() - get CPU count
+#include <unistd.h>  // sysconf() - get CPU count
 
 const char DBPath[] = "/tmp/rocksdb_simple_example";
 
 int main(int argc, char **argv) {
-	rocksdb_t *db;
-	rocksdb_options_t *options = rocksdb_options_create();
-	// Optimize RocksDB. This is the easiest way to
-	// get RocksDB to perform well
-	long cpus = sysconf(_SC_NPROCESSORS_ONLN);	// get # of online cores
-	rocksdb_options_increase_parallelism(options, (int)(cpus));
-	rocksdb_options_optimize_level_style_compaction(options, 0);
-	// create the DB if it's not already present
-	rocksdb_options_set_create_if_missing(options, 1);
-
-	// open DB
-	char *err = NULL;
-	db = rocksdb_open(options, DBPath, &err);
-	assert(!err);
-
-	// Put key-value
-	rocksdb_writeoptions_t *writeoptions = rocksdb_writeoptions_create();
-	const char key[] = "key";
-	const char *value = "value";
-	rocksdb_put(db, writeoptions, key, strlen (key), value,	\
-			strlen (value) + 1, &err);
-	assert(!err);
-	// Get value
-	rocksdb_readoptions_t *readoptions = rocksdb_readoptions_create();
-	size_t len;
-	value = rocksdb_get(db, readoptions, key, strlen (key), &len, &err);
-	assert(!err);
-	assert(strcmp(value, "value") == 0);
-
-	// cleanup
-	rocksdb_writeoptions_destroy(writeoptions);
-	rocksdb_readoptions_destroy(readoptions);
-	rocksdb_options_destroy(options);
-	rocksdb_close(db);
-
-	return 0;
+  rocksdb_t *db;
+  rocksdb_options_t *options = rocksdb_options_create();
+  // Optimize RocksDB. This is the easiest way to
+  // get RocksDB to perform well
+  long cpus = sysconf(_SC_NPROCESSORS_ONLN);  // get # of online cores
+  rocksdb_options_increase_parallelism(options, (int)(cpus));
+  rocksdb_options_optimize_level_style_compaction(options, 0);
+  // create the DB if it's not already present
+  rocksdb_options_set_create_if_missing(options, 1);
+
+  // open DB
+  char *err = NULL;
+  db = rocksdb_open(options, DBPath, &err);
+  assert(!err);
+
+  // Put key-value
+  rocksdb_writeoptions_t *writeoptions = rocksdb_writeoptions_create();
+  const char key[] = "key";
+  const char *value = "value";
+  rocksdb_put(db, writeoptions, key, strlen(key), value, strlen(value) + 1,
+              &err);
+  assert(!err);
+  // Get value
+  rocksdb_readoptions_t *readoptions = rocksdb_readoptions_create();
+  size_t len;
+  char *returned_value =
+      rocksdb_get(db, readoptions, key, strlen(key), &len, &err);
+  assert(!err);
+  assert(strcmp(returned_value, "value") == 0);
+  free(returned_value);
+
+  // cleanup
+  rocksdb_writeoptions_destroy(writeoptions);
+  rocksdb_readoptions_destroy(readoptions);
+  rocksdb_options_destroy(options);
+  rocksdb_close(db);
+
+  return 0;
 }