string: use __restrict instead of restrict for C++ compatibility

include/gint/dma.h

@@ -104,6 +104,7 @@ void *dma_memset(void *dst, uint32_t pattern, size_t size);
    @dst   Destination address (32-aligned)
    @dst   Source addresss (32-aligned)
    @size  Size of region (32-aligned) */
-void *dma_memcpy(void * restrict dst, const void * restrict src, size_t size);
+void *dma_memcpy(void * __restrict dst, const void * __restrict src,
+   size_t size);
 
 #endif /* GINT_DMA */

include/gint/std/string.h

@@ -8,7 +8,7 @@
 #include <stddef.h>
 
 /* memcpy(): Copy a chunk of memory to a non-overlapping destination */
-void *memcpy(void * restrict dest, void const * restrict src, size_t n);
+void *memcpy(void * __restrict dest, void const * __restrict src, size_t n);
 
 /* memset(): Fill a chunk of memory with a single byte */
 void *memset(void *dest, int byte, size_t n);

src/dma/memcpy.c

@@ -1,7 +1,8 @@
 #include <gint/dma.h>
 
 /* dma_memcpy(): Fast 32-aligned memcpy */
-void *dma_memcpy(void * restrict dst, const void * restrict src, size_t size)
+void *dma_memcpy(void * __restrict dst, const void * __restrict src,
+	size_t size)
 {
 	dma_transfer(1, DMA_32B, size >> 5, src, DMA_INC, dst, DMA_INC);
 	dma_transfer_wait(1);

src/kernel/start.c

@@ -50,7 +50,7 @@ void gint_setrestart(int restart)
    @l  Source pointer (load address)
    @s  Size of area (should be a multiple of 16)
    @r  Destination pointer (relocation address) */
-static void regcpy(uint32_t * restrict l, int32_t s, uint32_t * restrict r)
+static void regcpy(uint32_t * __restrict l, int32_t s, uint32_t * __restrict r)
 {
 	while(s > 0)
 	{