hex_to_str

src/string/StringBuilder.c

@@ -55,13 +55,13 @@ void StringBuilder_append_f64(StringBuilder* b, f64 n){
     StringBuilder_append_cstr(b, buf);
 }
 
-void StringBuilder_append_memory(StringBuilder* b, Array mem) {
+void StringBuilder_append_memory(StringBuilder* b, Array mem, bool uppercase) {
     if(mem.data == NULL)
         return;
     
     char buf[8];
     for (u32 i=0; i < mem.size; i++) {
-        sprintf(buf, "%02x", ((u8*)mem.data)[i]);
+        sprintf(buf, uppercase ? "%02X" : "%02x", ((u8*)mem.data)[i]);
         StringBuilder_append_str(b, str_construct(buf, 2, true));
     }
 }

src/string/str.c

@@ -1,4 +1,5 @@
 #include "string/str.h"
+#include "string/StringBuilder.h"
 
 str str_copy(str src){
     if(src.data == NULL || src.size == 0)
@@ -123,3 +124,9 @@ str str_toLower(str src){
     }
     return r;
 }
+
+str hex_to_str(Array buf, bool uppercase){
+    StringBuilder sb = StringBuilder_alloc(buf.size * 2 + 1);
+    StringBuilder_append_memory(&sb, buf, uppercase);
+    return StringBuilder_getStr(&sb);
+}