export ncnn version date api (#6437)

Author: nihui

src/c_api.cpp

@@ -34,11 +34,16 @@ using ncnn::ParamDict;
 extern "C" {
 #endif
 
-const char* ncnn_version()
+const char* ncnn_version_string()
 {
     return NCNN_VERSION_STRING;
 }
 
+int ncnn_version()
+{
+    return NCNN_VERSION;
+}
+
 /* allocator api */
 class PoolAllocator_c_api : public ncnn::PoolAllocator
 {

src/c_api.h

@@ -15,7 +15,8 @@
 extern "C" {
 #endif
 
-NCNN_EXPORT const char* ncnn_version(void);
+NCNN_EXPORT const char* ncnn_version_string(void);
+NCNN_EXPORT int ncnn_version(void);
 
 /* allocator api */
 typedef struct __ncnn_allocator_t* ncnn_allocator_t;

src/gpu.cpp

@@ -2535,7 +2535,7 @@ int create_gpu_instance(const char* driver_path)
     applicationInfo.pApplicationName = "ncnn";
     applicationInfo.applicationVersion = 0;
     applicationInfo.pEngineName = "ncnn";
-    applicationInfo.engineVersion = 20250327;
+    applicationInfo.engineVersion = NCNN_VERSION;
     applicationInfo.apiVersion = instance_api_version;
 
     void* enabledExtensionFeatures = 0;

src/platform.h.in

@@ -60,6 +60,7 @@
 #cmakedefine01 NCNN_FORCE_INLINE
 
 #cmakedefine NCNN_VERSION_STRING "@NCNN_VERSION_STRING@"
+#cmakedefine NCNN_VERSION @NCNN_VERSION@
 
 #include "ncnn_export.h"