CANN: Make `valid_values` variable `static const` (llama/18627)

diff --git a/ggml/src/ggml-cann/ggml-cann.cpp b/ggml/src/ggml-cann/ggml-cann.cpp
index 7f6214e4fb40a23f745830f3a96db4ab46423bb5..acf88db9b77cbbced20f1c369e96de4573ddf87b 100644 (file)
--- a/ggml/src/ggml-cann/ggml-cann.cpp
+++ b/ggml/src/ggml-cann/ggml-cann.cpp
@@ -122,7 +122,7 @@ std::optional<std::string> get_env(const std::string & name) {
  * @brief Verify whether the environment variable is a valid value.
  */
 bool parse_bool(const std::string & value) {
-    std::unordered_set<std::string> valid_values = { "on", "1", "yes", "y", "enable", "true" };
+    static const std::unordered_set<std::string> valid_values = { "on", "1", "yes", "y", "enable", "true" };
     return valid_values.find(value) != valid_values.end();
 }