From 86cd1e31c0e358a9d768e11be03c32be287073e8 Mon Sep 17 00:00:00 2001
From: ENGO150 <v.smejkal06@gmail.com>
Date: Fri, 22 Jul 2022 17:42:26 +0200
Subject: [PATCH] created math operations callbacks

part 1/3
---
 src/lib/misc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/lib/misc.c b/src/lib/misc.c
index ecfbfce..64e177d 100644
--- a/src/lib/misc.c
+++ b/src/lib/misc.c
@@ -13,6 +13,10 @@
 
 #include <why2/flags.h>
 
+double multiply_cb(int a, int b) { return a * b; }
+double subtract_cb(int a, int b) { return a - b; }
+double sum_cb(int a, int b) { return a + b; }
+
 int unlink_cb(const char *fpath, UNUSED const struct stat *sb, UNUSED int typeflag, UNUSED struct FTW *ftwbuf)
 {
     int rv = remove(fpath);