check r

2015-03-13 23:49:56 -07:00
parent 2159d18f0b
commit 8386c2b7fa
1 changed files with 3 additions and 1 deletions
--- a/R-package/src/xgboost_R.cpp
+++ b/R-package/src/xgboost_R.cpp
@@ -293,7 +293,9 @@ extern "C" {
    const char *raw = XGBoosterGetModelRaw(R_ExternalPtrAddr(handle), &olen);
    _WrapperEnd();
    SEXP ret = PROTECT(allocVector(RAWSXP, olen));
-    memcpy(RAW(ret), raw, olen);
+    if (olen != 0) {
+      memcpy(RAW(ret), raw, olen);
+    }
    UNPROTECT(1);    
    return ret;
  }