style(cpp): apply clang-format to C++ files

Automatic formatting by clang-format to match project style.

Author: LessUp

algorithms/rle/cpp/main.cpp

@@ -11,7 +11,8 @@
 // Format:
 // - Magic number: 4 bytes "RLE\x00" for format identification
 // - Followed by (count, value) pairs until EOF:
-//   - count: 4-byte unsigned integer, little-endian, represents how many times value repeats, must be > 0.
+//   - count: 4-byte unsigned integer, little-endian, represents how many times value repeats, must
+//   be > 0.
 //   - value: 1 byte, represents the byte value to repeat.
 // This format is simple; all three language implementations are fully consistent for cross-decoding
 // and benchmarking.

algorithms/shared/cpp/src/buffer_api.cpp

@@ -3,8 +3,8 @@
 #include <unistd.h>
 
 #include <algorithm>
-#include <cstdlib>
 #include <cstdio>
+#include <cstdlib>
 #include <fstream>
 #include <limits>
 #include <stdexcept>
@@ -23,9 +23,12 @@ class ScopedTempFile {
     explicit ScopedTempFile(const char* prefix) {
         // Use platform-appropriate temp directory
         const char* tmp_dir = std::getenv("TMPDIR");
-        if (!tmp_dir) tmp_dir = std::getenv("TMP");
-        if (!tmp_dir) tmp_dir = std::getenv("TEMP");
-        if (!tmp_dir) tmp_dir = "/tmp";
+        if (!tmp_dir)
+            tmp_dir = std::getenv("TMP");
+        if (!tmp_dir)
+            tmp_dir = std::getenv("TEMP");
+        if (!tmp_dir)
+            tmp_dir = "/tmp";
         std::string pattern = std::string(tmp_dir) + "/" + prefix + "-XXXXXX";
         std::vector<char> buffer(pattern.begin(), pattern.end());
         buffer.push_back('\0');