Remove dep on rapidjson/internal

src/serialization.cpp

@@ -2,6 +2,31 @@
 #include "connection.h"
 #include "discord-rpc.h"
 
+template <typename T>
+void NumberToString(char* dest, T number)
+{
+    if (!number) {
+        *dest++ = '0';
+        *dest++ = 0;
+        return;
+    }
+    if (number < 0) {
+        *dest++ = '-';
+        number = -number;
+    }
+    char temp[32];
+    int place = 0;
+    while (number) {
+        auto digit = number % 10;
+        number = number / 10;
+        temp[place++] = '0' + (char)digit;
+    }
+    for (--place; place >= 0; --place) {
+        *dest++ = temp[place];
+    }
+    *dest = 0;
+}
+
 // it's ever so slightly faster to not have to strlen the key
 template <typename T>
 void WriteKey(JsonWriter& w, T& k)
@@ -50,8 +75,8 @@ void WriteOptionalString(JsonWriter& w, T& k, const char* value)
 void JsonWriteNonce(JsonWriter& writer, int nonce)
 {
     WriteKey(writer, "nonce");
-    char nonceBuffer[32]{};
-    rapidjson::internal::i32toa(nonce, nonceBuffer);
+    char nonceBuffer[32];
+    NumberToString(nonceBuffer, nonce);
     writer.String(nonceBuffer);
 }
 

src/serialization.h

@@ -5,7 +5,6 @@
 #include "rapidjson/document.h"
 #include "rapidjson/writer.h"
 #include "rapidjson/stringbuffer.h"
-#include "rapidjson/internal/itoa.h"
 
 // if only there was a standard library function for this
 template <size_t Len>
@@ -35,8 +34,7 @@ size_t JsonWriteRichPresenceObj(char* dest,
 size_t JsonWriteSubscribeCommand(char* dest, size_t maxLen, int nonce, const char* evtName);
 
 // I want to use as few allocations as I can get away with, and to do that with RapidJson, you need
-// to supply some of
-// your own allocators for stuff rather than use the defaults
+// to supply some of your own allocators for stuff rather than use the defaults
 
 class LinearAllocator {
 public: