vulkan/util: Make STACK_ARRAY() C++-friendly

C++ doesn't like the {0} initializer pattern when the first
field is not an integer, let's use the {} when __cplusplus is
defined.

Reviewed-by: Jason Ekstrand <jason.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15698>

diff --git a/src/vulkan/util/vk_util.h b/src/vulkan/util/vk_util.h
index 019ab5b..7a33e77 100644 (file)
--- a/src/vulkan/util/vk_util.h
+++ b/src/vulkan/util/vk_util.h
@@ -278,8 +278,14 @@ vk_spec_info_to_nir_spirv(const VkSpecializationInfo *spec_info,
 
 #define STACK_ARRAY_SIZE 8
 
+#ifdef __cplusplus
+#define STACK_ARRAY_ZERO_INIT {}
+#else
+#define STACK_ARRAY_ZERO_INIT {0}
+#endif
+
 #define STACK_ARRAY(type, name, size) \
-   type _stack_##name[STACK_ARRAY_SIZE] = {0}; \
+   type _stack_##name[STACK_ARRAY_SIZE] = STACK_ARRAY_ZERO_INIT; \
    type *const name = \
      ((size) <= STACK_ARRAY_SIZE ? _stack_##name : (type *)malloc((size) * sizeof(type)))