Add const to member which does not modify the object

include/blc_array.h

@@ -80,15 +80,15 @@ typedef struct blc_array
 ==========================================*/
     
     /**Print the properties of the dims in a string (i.e. "3x800x600" )*/
-    int sprint_dims(char *string, int max_string_size);
+    int sprint_dims(char *string, int max_string_size) const;
     /**Print the properties of the dims in a file or stderr by default (i.e. "3x800x600" )*/
     int fprint_dims(FILE *file=stderr) const;
     /**Print all the informations about the blc_array. Useful for debuging.*/
     void fprint_debug(FILE *file=stderr) const;
     /**Print all the properties of the array in a string (i.e. "UIN8 RGB3 3x800x600")*/
-    void sprint_properties(char *string, size_t max_string_size);
+    void sprint_properties(char *string, size_t max_string_size) const;
     /**Print all the properties of the array in a file or stderr by default. (i.e. "UIN8 RGB3 3x800x600")*/
-    void fprint_properties(FILE *file=stderr);
+    void fprint_properties(FILE *file=stderr) const;
     
 /* Modifying the properties of the array
 ======================================*/
@@ -127,13 +127,13 @@ typedef struct blc_array
 =====================*/
     
     /**Create a .blc file with the content of the blc_array. This is meant to be used with init_with_blc_file, update_with_blc_file.*/
-    void save_blc_file(char const *filename);
+    void save_blc_file(char const *filename) const;
     /**Write the content of the blc_array as TSV (tab separated values) in a file. It can also be used to write on the terminal.*/    
-    void fprint_tsv(FILE *file=stderr);
+    void fprint_tsv(FILE *file=stderr) const;
     /**Comme fprint_tsv but automtically create the file. With filename which must have .tsv extension.*/
-    void save_tsv_file(char const *filename);
+    void save_tsv_file(char const *filename) const;
     /**Print the blc_array as a text_graph surface. Only works with 2D blc_array of type 'UIN8'. It draws a matrix of values. If ansi terminal is 1, it draws colored valuse depending on the blc_uchar_color_scale.*/
-    void fprint_surface_uchars(FILE *file, int ansi_terminal=0);
+    void fprint_surface_uchars(FILE *file, int ansi_terminal=0) const;
 
 /*miscellaneous
 =============*/

src/blc_array.cpp

@@ -164,7 +164,7 @@ int blc_array::get_type_size(){
     return blc_get_type_size(type);
 }
 
-int blc_array::sprint_dims(char *string, int string_size){
+int blc_array::sprint_dims(char *string, int string_size) const{
     int i, width=0;
     
     if (dims_nb==0)  width=snprintf(string, string_size,  "0");
@@ -176,7 +176,7 @@ int blc_array::sprint_dims(char *string, int string_size){
     return width;
 }
 
-int blc_array::fprint_dims(FILE *file)const {
+int blc_array::fprint_dims(FILE *file) const {
     int i, width;
     
     if (dims_nb==0)  width=fprintf(file, "0");
@@ -234,7 +234,7 @@ int blc_array::sscan_dims(char const *string){
 
 
 //Should use code in common with fprint_info
-void blc_array::sprint_properties(char *buffer, size_t buffer_size){
+void blc_array::sprint_properties(char *buffer, size_t buffer_size) const{
     int width;
     uint32_t str_type;
     uint32_t str_format;
@@ -246,7 +246,7 @@ void blc_array::sprint_properties(char *buffer, size_t buffer_size){
     width+=sprint_dims(buffer+width,buffer_size-width);
 }
 
-void blc_array::fprint_properties(FILE *file){
+void blc_array::fprint_properties(FILE *file) const {
     int width;
     uint32_t net_type = htonl(type);
     uint32_t net_format = htonl(format);
@@ -366,7 +366,7 @@ void blc_array::update_with_blc_file(char const *filename){
     fclose(file);
 }
 
-void blc_array::save_blc_file(char const *filename){
+void blc_array::save_blc_file(char const *filename)const{
     FILE *file;
     ssize_t ret;
     char const *ext;
@@ -387,7 +387,7 @@ void blc_array::save_blc_file(char const *filename){
 }
 
 
-void blc_array::fprint_tsv(FILE *file){
+void blc_array::fprint_tsv(FILE *file)const{
     int dim, length, i, j;
     uint32_t type_str;
     blc_dim *tmp_dims;
@@ -575,7 +575,7 @@ void blc_array::update_with_tsv_file(char const *filename){
     fclose(file);
 }
 
-void blc_array::save_tsv_file(char const *filename){
+void blc_array::save_tsv_file(char const *filename)const{
     FILE *file;
     char const *ext;
     
@@ -590,7 +590,7 @@ void blc_array::save_tsv_file(char const *filename){
     fclose(file);
 }
 
-void blc_array::fprint_surface_uchars(FILE *file, int ansi_terminal){
+void blc_array::fprint_surface_uchars(FILE *file, int ansi_terminal)const{
     blc_fprint_3Darray(file, this->uchars, this->size, 0, 1, 1, dims[0].step, dims[0].length, dims[1].step, dims[1].length, ansi_terminal);
 }