Add support for C, S, and p conversions. C and S are not yet implemented

as I'm unsure as to how widely supported they are.

src/xpdev/xpprintf.c

@@ -314,6 +314,10 @@ char *xp_asprintf_next(char *format, int type, ...)
 						break;
 				}
 				break;
+			case 'C':
+				/* ToDo wide chars... not yet supported */
+				correct_type=XP_PRINTF_TYPE_CHAR;
+				break;
 			case 'c':
 				switch(modifier) {
 					case 'l':
@@ -322,6 +326,10 @@ char *xp_asprintf_next(char *format, int type, ...)
 						correct_type=XP_PRINTF_TYPE_CHAR;
 				}
 				break;
+			case 'S':
+				/* ToDo wide chars... not yet supported */
+				correct_type=XP_PRINTF_TYPE_CHARP;
+				break;
 			case 's':
 				switch(modifier) {
 					case 'l':
@@ -330,6 +338,9 @@ char *xp_asprintf_next(char *format, int type, ...)
 						correct_type=XP_PRINTF_TYPE_CHARP;
 				}
 				break;
+			case 'p':
+				correct_type=XP_PRINTF_TYPE_VOIDP;
+				break;
 		}
 	}
 	if(type==XP_PRINTF_TYPE_AUTO)