fix for header/imp usage

Signed-off-by: 倪庆亮 <qingliang.ni@magewell.com>

src/nuklear_combo.c

@@ -298,6 +298,10 @@ nk_combo_begin_symbol(struct nk_context *ctx, enum nk_symbol_type symbol, struct
             nk_fill_rect(&win->buffer, header, style->combo.rounding, background->data.color);
             nk_stroke_rect(&win->buffer, header, style->combo.rounding, style->combo.border, style->combo.border_color);
             break;
+        default:
+            NK_ASSERT(0);
+            sym_background = nk_rgba(0, 0, 0, 0);
+            break;
     }
     {
         struct nk_rect bounds = {0,0,0,0};
@@ -395,6 +399,10 @@ nk_combo_begin_symbol_text(struct nk_context *ctx, const char *selected, int len
             nk_fill_rect(&win->buffer, header, style->combo.rounding, background->data.color);
             nk_stroke_rect(&win->buffer, header, style->combo.rounding, style->combo.border, style->combo.border_color);
             break;
+        default:
+            NK_ASSERT(0);
+            text.background = nk_rgba(0, 0, 0, 0);
+            break;
     }
     {
         struct nk_rect content;

src/nuklear_internal.h

@@ -121,15 +121,21 @@ NK_LIB int nk_to_upper(int c);
 NK_LIB int nk_to_lower(int c);
 
 #ifndef NK_MEMCPY
+#define NK_MEMCPY_IMP
+#define NK_MEMCPY nk_memcopy
 NK_LIB void* nk_memcopy(void *dst, const void *src, nk_size n);
 #endif
 #ifndef NK_MEMSET
+#define NK_MEMSET_IMP
+#define NK_MEMSET nk_memset
 NK_LIB void nk_memset(void *ptr, int c0, nk_size size);
 #endif
 NK_LIB void nk_zero(void *ptr, nk_size size);
 NK_LIB char *nk_itoa(char *s, long n);
 NK_LIB int nk_string_float_limit(char *string, int prec);
 #ifndef NK_DTOA
+#define NK_DTOA_IMP
+#define NK_DTOA nk_dtoa
 NK_LIB char *nk_dtoa(char *s, double n);
 #endif
 NK_LIB int nk_text_clamp(const struct nk_user_font *font, const char *text, int text_len, float space, int *glyphs, float *text_width, nk_rune *sep_list, int sep_count);

src/nuklear_selectable.c

@@ -55,6 +55,10 @@ nk_draw_selectable(struct nk_command_buffer *out,
             text.background = background->data.color;
             nk_fill_rect(out, *bounds, style->rounding, background->data.color);
             break;
+        default:
+            NK_ASSERT(0);
+            text.background = nk_rgba(0, 0, 0, 0);
+            break;
     }
     if (icon) {
         if (img) nk_draw_image(out, *icon, img, nk_white);

src/nuklear_util.c

@@ -13,8 +13,7 @@ NK_LIB nk_bool nk_is_upper(int c){return (c >= 'A' && c <= 'Z') || (c >= 0xC0 &&
 NK_LIB int nk_to_upper(int c) {return (c >= 'a' && c <= 'z') ? (c - ('a' - 'A')) : c;}
 NK_LIB int nk_to_lower(int c) {return (c >= 'A' && c <= 'Z') ? (c - ('a' + 'A')) : c;}
 
-#ifndef NK_MEMCPY
-#define NK_MEMCPY nk_memcopy
+#ifdef NK_MEMCPY_IMP
 NK_LIB void*
 nk_memcopy(void *dst0, const void *src0, nk_size length)
 {
@@ -72,8 +71,7 @@ done:
     return (dst0);
 }
 #endif
-#ifndef NK_MEMSET
-#define NK_MEMSET nk_memset
+#ifdef NK_MEMSET_IMP
 NK_LIB void
 nk_memset(void *ptr, int c0, nk_size size)
 {
@@ -499,8 +497,7 @@ nk_itoa(char *s, long n)
     nk_strrev_ascii(s);
     return s;
 }
-#ifndef NK_DTOA
-#define NK_DTOA nk_dtoa
+#ifdef NK_DTOA_IMP
 NK_LIB char*
 nk_dtoa(char *s, double n)
 {