Add basic C++ support

programs/bpf/c/src/noop++.cc

@@ -0,0 +1,24 @@
+/**
+ * @brief Example C++-based BPF program that prints out the parameters
+ * passed to it
+ */
+#include <solana_sdk.h>
+
+extern bool entrypoint(const uint8_t *input) {
+  SolKeyedAccounts ka[1];
+  uint64_t ka_len;
+  const uint8_t *data;
+  uint64_t data_len;
+
+  sol_log("noop++");
+
+  if (!sol_deserialize(input, ka, SOL_ARRAY_SIZE(ka), &ka_len, &data, &data_len)) {
+    return false;
+  }
+
+  // Log the provided account keys and instruction input data.  In the case of
+  // the no-op program, no account keys or input data are expected but real
+  // programs will have specific requirements so they can do their work.
+  sol_log_params(ka, ka_len, data, data_len);
+  return true;
+}

programs/bpf/c/src/noop.c

@@ -2,34 +2,23 @@
  * @brief Example C-based BPF program that prints out the parameters
  * passed to it
  */
-
 #include <solana_sdk.h>
 
-/**
- * Number of SolKeyedAccounts expected. The program should bail if an
- * unexpected number of accounts are passed to the program's entrypoint
- */
-#define NUM_KA 1
-
 extern bool entrypoint(const uint8_t *input) {
-  SolKeyedAccounts ka[NUM_KA];
+  SolKeyedAccounts ka[1];
+  uint64_t ka_len;
   const uint8_t *data;
   uint64_t data_len;
-  
-  sol_log("noop");
 
-  if (!sol_deserialize(input, ka, NUM_KA, NULL, &data, &data_len)) {
+  sol_log(__FILE__);
+
+  if (!sol_deserialize(input, ka, SOL_ARRAY_SIZE(ka), &ka_len, &data, &data_len)) {
     return false;
   }
-  sol_log_params(NUM_KA, ka, data, data_len);
 
-  sol_assert(sizeof(int8_t) == 1);
-  sol_assert(sizeof(uint8_t) == 1);
-  sol_assert(sizeof(int16_t) == 2);
-  sol_assert(sizeof(uint16_t) == 2);
-  sol_assert(sizeof(int32_t) == 4);
-  sol_assert(sizeof(uint32_t) == 4);
-  sol_assert(sizeof(int64_t) == 8);
-  sol_assert(sizeof(uint64_t) == 8);
+  // Log the provided account keys and instruction input data.  In the case of
+  // the no-op program, no account keys or input data are expected but real
+  // programs will have specific requirements so they can do their work.
+  sol_log_params(ka, ka_len, data, data_len);
   return true;
 }