qualify color_palettes_Q’s argument as const

This function does not modify its parameter. Related to #634, #1971.

diff --git a/lib/sparse/color_palette.c b/lib/sparse/color_palette.c
index f8542d6a45a5f5967db714212e13125b88e01ff0..0a329d7b0fca9efab49f71da792bfa5c99a0b3b3 100644 (file)
--- a/lib/sparse/color_palette.c
+++ b/lib/sparse/color_palette.c
@@ -42,7 +42,7 @@ void color_palettes_name_print(FILE *fp){
   }
 }
 
-int color_palettes_Q(char *color_palette_name){
+int color_palettes_Q(const char *color_palette_name) {
   int i;
   for (i = 0; i < npalettes; i++){
     if (strcmp(color_palette_name, color_palettes[i][0]) == 0){

diff --git a/lib/sparse/color_palette.h b/lib/sparse/color_palette.h
index ba4c8976431d16ac160a133ac11dce3a9677a6eb..42a3e2032a0588ef993470dff330b76d0b728258 100644 (file)
--- a/lib/sparse/color_palette.h
+++ b/lib/sparse/color_palette.h
@@ -19,7 +19,7 @@ extern char *color_palettes[npalettes][2];
   /* return a list of rgb in hex form: "#ff0000,#00ff00,..." */
 extern char *color_palettes_get(char *color_palette_name);
 extern void color_palettes_name_print(FILE *fp);
-extern int color_palettes_Q(char *color_palette_name);
+extern int color_palettes_Q(const char *color_palette_name);
 
 extern float palette_pastel[1001][3];
 extern float palette_blue_to_yellow[1001][3];