precision of w_float of the word of an atom changed from 6 to 6 and 14 acc to PD_FLOATSIZE

pd/src/m_atom.c

@@ -8,6 +8,13 @@
 
 #define DOLLARALL -0x7fffffff /* defined in m_binbuf.c, too. Consider merging */
 
+
+#if PD_FLOATSIZE == 32
+#define M_ATOM_FLOAT_SPECIFIER "%.6g"
+#elif PD_FLOATSIZE == 64
+#define M_ATOM_FLOAT_SPECIFIER "%.14lg"
+#endif
+
     /* convenience routines for checking and getting values of
         atoms.  There's no "pointer" version since there's nothing
         safe to return if there's an error. */
@@ -85,7 +92,7 @@ void atom_string(t_atom *a, char *buf, unsigned int bufsize)
         strcpy(buf, "(pointer)");
         break;
     case A_FLOAT:
-        sprintf(tbuf, "%g", a->a_w.w_float);
+        sprintf(tbuf, M_ATOM_FLOAT_SPECIFIER, a->a_w.w_float);
         if (strlen(tbuf) < bufsize-1) strcpy(buf, tbuf);
         else if (a->a_w.w_float < 0) strcpy(buf, "-");
         else  strcat(buf, "+");