diff --git a/examples/sokol/01_cubes/cube.v b/examples/sokol/01_cubes/cube.v
index 8b9b5a0cb6..7cf4432dbf 100644
--- a/examples/sokol/01_cubes/cube.v
+++ b/examples/sokol/01_cubes/cube.v
@@ -322,7 +322,7 @@ fn my_init(mut app App) {
 
 	// 3d pipeline
 	mut pipdesc := gfx.PipelineDesc{}
-	unsafe { C.memset(&pipdesc, 0, sizeof(pipdesc)) }
+	unsafe { vmemset(&pipdesc, 0, int(sizeof(pipdesc))) }
 
 	color_state := gfx.ColorState{
 		blend: gfx.BlendState{
diff --git a/examples/sokol/02_cubes_glsl/cube_glsl.v b/examples/sokol/02_cubes_glsl/cube_glsl.v
index 666353f11e..aa43c63488 100644
--- a/examples/sokol/02_cubes_glsl/cube_glsl.v
+++ b/examples/sokol/02_cubes_glsl/cube_glsl.v
@@ -277,7 +277,7 @@ fn init_cube_glsl(mut app App) {
 	]
 
 	mut vert_buffer_desc := gfx.BufferDesc{label: c'cube-vertices'}
-	unsafe { C.memset(&vert_buffer_desc, 0, sizeof(vert_buffer_desc)) }
+	unsafe { vmemset(&vert_buffer_desc, 0, int(sizeof(vert_buffer_desc))) }
 
 	vert_buffer_desc.size = usize(vertices.len * int(sizeof(Vertex_t)))
 	vert_buffer_desc.data = gfx.Range{
@@ -300,7 +300,7 @@ fn init_cube_glsl(mut app App) {
 	]
 
 	mut index_buffer_desc := gfx.BufferDesc{label: c'cube-indices'}
-	unsafe { C.memset(&index_buffer_desc, 0, sizeof(index_buffer_desc)) }
+	unsafe { vmemset(&index_buffer_desc, 0, int(sizeof(index_buffer_desc))) }
 
 	index_buffer_desc.size = usize(indices.len * int(sizeof(u16)))
 	index_buffer_desc.data = gfx.Range{
@@ -315,7 +315,7 @@ fn init_cube_glsl(mut app App) {
 	shader := gfx.make_shader(C.cube_shader_desc(C.sg_query_backend()))
 
 	mut pipdesc := gfx.PipelineDesc{}
-	unsafe { C.memset(&pipdesc, 0, sizeof(pipdesc)) }
+	unsafe { vmemset(&pipdesc, 0, int(sizeof(pipdesc))) }
 
 	pipdesc.layout.buffers[0].stride = int(sizeof(Vertex_t))
 	// the constants [C.ATTR_vs_pos, C.ATTR_vs_color0, C.ATTR_vs_texcoord0] are generated bysokol-shdc
@@ -493,7 +493,7 @@ fn my_init(mut app App) {
 
 	// 3d pipeline
 	mut pipdesc := gfx.PipelineDesc{}
-	unsafe { C.memset(&pipdesc, 0, sizeof(pipdesc)) }
+	unsafe { vmemset(&pipdesc, 0, int(sizeof(pipdesc))) }
 
 	color_state := gfx.ColorState{
 		blend: gfx.BlendState{
diff --git a/examples/sokol/03_march_tracing_glsl/rt_glsl.v b/examples/sokol/03_march_tracing_glsl/rt_glsl.v
index c1c7ce4458..876f9c625c 100644
--- a/examples/sokol/03_march_tracing_glsl/rt_glsl.v
+++ b/examples/sokol/03_march_tracing_glsl/rt_glsl.v
@@ -156,7 +156,7 @@ fn init_cube_glsl(mut app App) {
 	]
 
 	mut vert_buffer_desc := gfx.BufferDesc{label: c'cube-vertices'}
-	unsafe { C.memset(&vert_buffer_desc, 0, sizeof(vert_buffer_desc)) }
+	unsafe { vmemset(&vert_buffer_desc, 0, int(sizeof(vert_buffer_desc))) }
 
 	vert_buffer_desc.size = usize(vertices.len * int(sizeof(Vertex_t)))
 	vert_buffer_desc.data = gfx.Range{
@@ -178,7 +178,7 @@ fn init_cube_glsl(mut app App) {
 	]
 
 	mut index_buffer_desc := gfx.BufferDesc{label: c'cube-indices'}
-	unsafe {C.memset(&index_buffer_desc, 0, sizeof(index_buffer_desc))}
+	unsafe {vmemset(&index_buffer_desc, 0, int(sizeof(index_buffer_desc)))}
 
 	index_buffer_desc.size = usize(indices.len * int(sizeof(u16)))
 	index_buffer_desc.data = gfx.Range{
@@ -193,7 +193,7 @@ fn init_cube_glsl(mut app App) {
 	shader := gfx.make_shader(C.rt_shader_desc(C.sg_query_backend()))
 
 	mut pipdesc := gfx.PipelineDesc{}
-	unsafe { C.memset(&pipdesc, 0, sizeof(pipdesc)) }
+	unsafe { vmemset(&pipdesc, 0, int(sizeof(pipdesc))) }
 	pipdesc.layout.buffers[0].stride = int(sizeof(Vertex_t))
 
 	// the constants [C.ATTR_vs_pos, C.ATTR_vs_color0, C.ATTR_vs_texcoord0] are generated by sokol-shdc
diff --git a/examples/sokol/04_multi_shader_glsl/rt_glsl.v b/examples/sokol/04_multi_shader_glsl/rt_glsl.v
index 94902c8d38..e4d507906f 100644
--- a/examples/sokol/04_multi_shader_glsl/rt_glsl.v
+++ b/examples/sokol/04_multi_shader_glsl/rt_glsl.v
@@ -158,7 +158,7 @@ fn init_cube_glsl_m(mut app App) {
 	]
 
 	mut vert_buffer_desc := gfx.BufferDesc{label: c'cube-vertices'}
-	unsafe { C.memset(&vert_buffer_desc, 0, sizeof(vert_buffer_desc)) }
+	unsafe { vmemset(&vert_buffer_desc, 0, int(sizeof(vert_buffer_desc))) }
 	vert_buffer_desc.size = usize(vertices.len * int(sizeof(Vertex_t)))
 	vert_buffer_desc.data = gfx.Range{
 		ptr: vertices.data
@@ -180,7 +180,7 @@ fn init_cube_glsl_m(mut app App) {
 	]
 
 	mut index_buffer_desc := gfx.BufferDesc{label: c'cube-indices'}
-	unsafe { C.memset(&index_buffer_desc, 0, sizeof(index_buffer_desc)) }
+	unsafe { vmemset(&index_buffer_desc, 0, int(sizeof(index_buffer_desc))) }
 	index_buffer_desc.size = usize(indices.len * int(sizeof(u16)))
 	index_buffer_desc.data = gfx.Range{
 		ptr: indices.data
@@ -193,7 +193,7 @@ fn init_cube_glsl_m(mut app App) {
 	shader := gfx.make_shader(C.rt_march_shader_desc(C.sg_query_backend()))
 
 	mut pipdesc := gfx.PipelineDesc{}
-	unsafe { C.memset(&pipdesc, 0, sizeof(pipdesc)) }
+	unsafe { vmemset(&pipdesc, 0, int(sizeof(pipdesc))) }
 	pipdesc.layout.buffers[0].stride = int(sizeof(Vertex_t))
 
 	// the constants [C.ATTR_vs_m_pos, C.ATTR_vs_m_color0, C.ATTR_vs_m_texcoord0] are generated by sokol-shdc
@@ -213,7 +213,7 @@ fn init_cube_glsl_m(mut app App) {
 	pipdesc.label = 'glsl_shader pipeline'.str
 
 	mut bind := gfx.Bindings{}
-	unsafe { C.memset(&bind, 0, sizeof(bind)) }
+	unsafe { vmemset(&bind, 0, int(sizeof(bind))) }
 	bind.vertex_buffers[0] = vbuf
 	bind.index_buffer = ibuf
 	bind.fs_images[C.SLOT_tex] = app.texture
@@ -264,7 +264,7 @@ fn init_cube_glsl_p(mut app App) {
 	]
 
 	mut vert_buffer_desc := gfx.BufferDesc{label: c'cube-vertices'}
-	unsafe { C.memset(&vert_buffer_desc, 0, sizeof(vert_buffer_desc)) }
+	unsafe { vmemset(&vert_buffer_desc, 0, int(sizeof(vert_buffer_desc))) }
 	vert_buffer_desc.size = usize(vertices.len * int(sizeof(Vertex_t)))
 	vert_buffer_desc.data = gfx.Range{
 		ptr: vertices.data
@@ -287,7 +287,7 @@ fn init_cube_glsl_p(mut app App) {
 	]
 
 	mut index_buffer_desc := gfx.BufferDesc{label: c'cube-indices'}
-	unsafe { C.memset(&index_buffer_desc, 0, sizeof(index_buffer_desc)) }
+	unsafe { vmemset(&index_buffer_desc, 0, int(sizeof(index_buffer_desc))) }
 	index_buffer_desc.size = usize(indices.len * int(sizeof(u16)))
 	index_buffer_desc.data = gfx.Range{
 		ptr: indices.data
@@ -300,7 +300,7 @@ fn init_cube_glsl_p(mut app App) {
 	shader := gfx.make_shader(C.rt_puppy_shader_desc(C.sg_query_backend()))
 
 	mut pipdesc := gfx.PipelineDesc{}
-	unsafe { C.memset(&pipdesc, 0, sizeof(pipdesc)) }
+	unsafe { vmemset(&pipdesc, 0, int(sizeof(pipdesc))) }
 	pipdesc.layout.buffers[0].stride = int(sizeof(Vertex_t))
 
 	// the constants [C.ATTR_vs_p_pos, C.ATTR_vs_p_color0, C.ATTR_vs_p_texcoord0] are generated by sokol-shdc
@@ -321,7 +321,7 @@ fn init_cube_glsl_p(mut app App) {
 	pipdesc.label = 'glsl_shader pipeline'.str
 
 	mut bind := gfx.Bindings{}
-	unsafe { C.memset(&bind, 0, sizeof(bind)) }
+	unsafe { vmemset(&bind, 0, int(sizeof(bind))) }
 	bind.vertex_buffers[0] = vbuf
 	bind.index_buffer = ibuf
 	bind.fs_images[C.SLOT_tex] = app.texture
diff --git a/examples/sokol/05_instancing_glsl/rt_glsl.v b/examples/sokol/05_instancing_glsl/rt_glsl.v
index 0584dd2124..1885704f0d 100644
--- a/examples/sokol/05_instancing_glsl/rt_glsl.v
+++ b/examples/sokol/05_instancing_glsl/rt_glsl.v
@@ -173,7 +173,7 @@ fn init_cube_glsl_i(mut app App) {
 	]
 
 	mut vert_buffer_desc := gfx.BufferDesc{label: c'cube-vertices'}
-	unsafe {C.memset(&vert_buffer_desc, 0, sizeof(vert_buffer_desc))}
+	unsafe {vmemset(&vert_buffer_desc, 0, int(sizeof(vert_buffer_desc)))}
 	vert_buffer_desc.size = usize(vertices.len * int(sizeof(Vertex_t)))
 	vert_buffer_desc.data = gfx.Range{
 		ptr: vertices.data
@@ -184,7 +184,7 @@ fn init_cube_glsl_i(mut app App) {
 
 	/* create an instance buffer for the cube */
 	mut inst_buffer_desc := gfx.BufferDesc{label: c'instance-data'}
-	unsafe {C.memset(&inst_buffer_desc, 0, sizeof(inst_buffer_desc))}
+	unsafe {vmemset(&inst_buffer_desc, 0, int(sizeof(inst_buffer_desc)))}
 
 	inst_buffer_desc.size = usize(num_inst * int(sizeof(m4.Vec4)))
 	inst_buffer_desc.@type   = .vertexbuffer
@@ -203,7 +203,7 @@ fn init_cube_glsl_i(mut app App) {
 	]
 
 	mut index_buffer_desc := gfx.BufferDesc{label: c'cube-indices'}
-	unsafe {C.memset(&index_buffer_desc, 0, sizeof(index_buffer_desc))}
+	unsafe {vmemset(&index_buffer_desc, 0, int(sizeof(index_buffer_desc)))}
 	index_buffer_desc.size    = usize(indices.len * int(sizeof(u16)))
 	index_buffer_desc.data = gfx.Range{
 		ptr: indices.data
@@ -216,7 +216,7 @@ fn init_cube_glsl_i(mut app App) {
 	shader := gfx.make_shader(C.instancing_shader_desc(C.sg_query_backend()))
 
 	mut pipdesc := gfx.PipelineDesc{}
-	unsafe {C.memset(&pipdesc, 0, sizeof(pipdesc))}
+	unsafe {vmemset(&pipdesc, 0, int(sizeof(pipdesc)))}
 	pipdesc.layout.buffers[0].stride = int(sizeof(Vertex_t))
 
 	// the constants [C.ATTR_vs_m_pos, C.ATTR_vs_m_color0, C.ATTR_vs_m_texcoord0] are generated by sokol-shdc
@@ -246,7 +246,7 @@ fn init_cube_glsl_i(mut app App) {
 	pipdesc.label = "glsl_shader pipeline".str
 
 	mut bind := gfx.Bindings{}
-	unsafe {C.memset(&bind, 0, sizeof(bind))}
+	unsafe {vmemset(&bind, 0, int(sizeof(bind)))}
 	bind.vertex_buffers[0] = vbuf      // vertex buffer
 	bind.vertex_buffers[1] = inst_buf  // instance buffer
 	bind.index_buffer      = ibuf
diff --git a/examples/sokol/06_obj_viewer/modules/obj/rend.v b/examples/sokol/06_obj_viewer/modules/obj/rend.v
index ab6d9d4a83..2f3c51411b 100644
--- a/examples/sokol/06_obj_viewer/modules/obj/rend.v
+++ b/examples/sokol/06_obj_viewer/modules/obj/rend.v
@@ -71,7 +71,7 @@ pub fn (mut obj_part ObjPart) create_pipeline(in_part []int, shader gfx.Shader,
 	mut vert_buffer_desc := gfx.BufferDesc{
 		label: 0
 	}
-	unsafe { C.memset(&vert_buffer_desc, 0, sizeof(vert_buffer_desc)) }
+	unsafe { vmemset(&vert_buffer_desc, 0, int(sizeof(vert_buffer_desc))) }
 
 	vert_buffer_desc.size = usize(obj_buf.vbuf.len * int(sizeof(Vertex_pnct)))
 	vert_buffer_desc.data = gfx.Range{
@@ -87,7 +87,7 @@ pub fn (mut obj_part ObjPart) create_pipeline(in_part []int, shader gfx.Shader,
 	mut index_buffer_desc := gfx.BufferDesc{
 		label: 0
 	}
-	unsafe { C.memset(&index_buffer_desc, 0, sizeof(index_buffer_desc)) }
+	unsafe { vmemset(&index_buffer_desc, 0, int(sizeof(index_buffer_desc))) }
 
 	index_buffer_desc.size = usize(obj_buf.ibuf.len * int(sizeof(u32)))
 	index_buffer_desc.data = gfx.Range{
@@ -100,7 +100,7 @@ pub fn (mut obj_part ObjPart) create_pipeline(in_part []int, shader gfx.Shader,
 	ibuf := gfx.make_buffer(&index_buffer_desc)
 
 	mut pipdesc := gfx.PipelineDesc{}
-	unsafe { C.memset(&pipdesc, 0, sizeof(pipdesc)) }
+	unsafe { vmemset(&pipdesc, 0, int(sizeof(pipdesc))) }
 	pipdesc.layout.buffers[0].stride = int(sizeof(Vertex_pnct))
 
 	// the constants [C.ATTR_vs_a_Position, C.ATTR_vs_a_Color, C.ATTR_vs_a_Texcoord0] are generated by sokol-shdc
diff --git a/examples/sokol/particles/particles.v b/examples/sokol/particles/particles.v
index e0e40c8c8d..75fad1a968 100644
--- a/examples/sokol/particles/particles.v
+++ b/examples/sokol/particles/particles.v
@@ -80,7 +80,7 @@ fn init(user_data voidptr) {
 	}
 	sgl.setup(&sgl_desc)
 	mut pipdesc := gfx.PipelineDesc{}
-	unsafe { C.memset(&pipdesc, 0, sizeof(pipdesc)) }
+	unsafe { vmemset(&pipdesc, 0, int(sizeof(pipdesc))) }
 
 	color_state := gfx.ColorState{
 		blend: gfx.BlendState{
diff --git a/examples/viewer/view.v b/examples/viewer/view.v
index 39aca77a77..faa87c5368 100644
--- a/examples/viewer/view.v
+++ b/examples/viewer/view.v
@@ -316,7 +316,7 @@ fn app_init(mut app App) {
 
 	// 3d pipeline
 	mut pipdesc := gfx.PipelineDesc{}
-	unsafe { C.memset(&pipdesc, 0, sizeof(pipdesc)) }
+	unsafe { vmemset(&pipdesc, 0, int(sizeof(pipdesc))) }
 
 	color_state := gfx.ColorState{
 		blend: gfx.BlendState{