updated multiple types to const

2 files changed, 13 insertions, 13 deletions

diff --git a/src/plotting.c b/src/plotting.c
index 96d76c5..5b5565e 100644
--- a/src/plotting.c
+++ b/src/plotting.c
@@ -5,8 +5,8 @@
 /*
  * Gets the corresponding color for a given number of iterations according to a gradient
  */
-color get_color(size_t iterations, size_t max_iterations, gradient map){
-    size_t val = (max_iterations - iterations) / max_iterations;
+color get_color(const size_t iterations, const size_t max_iterations, const gradient map){
+    const size_t val = (max_iterations - iterations) / max_iterations;
     color color;
 
     //TODO: map the interval of [0,max_iterations] to a value given a gradient
@@ -16,7 +16,7 @@ color get_color(size_t iterations, size_t max_iterations, gradient map){
 /*
  * Gets the associated "red" value for a given number of iterations according to a gradient
  */
-char get_red(size_t iterations, size_t max_iterations, gradient map){
+char get_red(const size_t iterations, const size_t max_iterations, const gradient map){
     char red;
 
     return red;
@@ -25,7 +25,7 @@ char get_red(size_t iterations, size_t max_iterations, gradient map){
 /*
  * Gets the associated "green" value for a given number of iterations according to a gradient
  */
-char get_green(size_t iterations, size_t max_iterations, gradient map){
+char get_green(const size_t iterations, const size_t max_iterations, const gradient map){
     char green;
 
     return green;
@@ -34,13 +34,13 @@ char get_green(size_t iterations, size_t max_iterations, gradient map){
 /*
  * Gets the associated "blue" value for a given number of iterations according to a gradient
  */
-char get_blue(size_t iterations, size_t max_iterations, gradient map){
+char get_blue(const size_t iterations, const size_t max_iterations, const gradient map){
     char blue;
 
     return blue;
 }
 
-colors_t* create_colors(size_t x, size_t y){
+colors_t* create_colors(const size_t x, const size_t y){
     if(x <= 0 || y <= 0) return NULL;
 
     char* red = malloc(x*y);
@@ -68,8 +68,8 @@ colors_t* create_colors(size_t x, size_t y){
     return colors;
 }
 
-colors_t* copy_colors(colors_t* colors){
-    if(!colors) return NULL;
+colors_t* copy_colors(const colors_t* colors){
+    if(!colors || !colors->red  || !colors->green || !colors->blue) return NULL;
 
     colors_t* colors_copy = create_colors(colors->x, colors->y);
     if(!colors_copy) return NULL;
diff --git a/src/plotting.h b/src/plotting.h
index 9d72b69..d94c7bc 100644
--- a/src/plotting.h
+++ b/src/plotting.h
@@ -20,12 +20,12 @@ typedef struct {
 typedef char gradient;
 
 // for AoS
-color get_color(size_t iterations, size_t max_iterations, gradient map);
+color get_color(const size_t iterations, const size_t max_iterations, const gradient map);
 
 // for SoA
-char get_red(size_t iterations, size_t max_iterations, gradient map);
-char get_green(size_t iterations, size_t max_iterations, gradient map);
-char get_blue(size_t iterations, size_t max_iterations, gradient map);
+char get_red(const size_t iterations, const size_t max_iterations, const gradient map);
+char get_green(const size_t iterations, const size_t max_iterations, const gradient map);
+char get_blue(const size_t iterations, const size_t max_iterations, const gradient map);
 colors_t* create_colors(size_t x, size_t y);
-colors_t* copy_colors(colors_t* colors);
+colors_t* copy_colors(const colors_t* colors);
 void free_colors(colors_t* colors);