From b64edd77652665b312aa2fd693d507ad3a81dc69 Mon Sep 17 00:00:00 2001
From: Matheus <matheusuky@gmail.com>
Date: Thu, 24 Nov 2022 18:27:12 -0300
Subject: [PATCH] math.h: intpow

---
 src/include/Makefile      |  4 ++--
 src/include/math.h        |  6 ++++++
 src/include/math/Makefile | 12 ++++++++++++
 src/include/math/pow.c    | 20 ++++++++++++++++++++
 4 files changed, 40 insertions(+), 2 deletions(-)
 create mode 100644 src/include/math.h
 create mode 100644 src/include/math/Makefile
 create mode 100644 src/include/math/pow.c

diff --git a/src/include/Makefile b/src/include/Makefile
index 4b5f4feb..cd68e74e 100644
--- a/src/include/Makefile
+++ b/src/include/Makefile
@@ -1,6 +1,6 @@
 objects := $(patsubst %.c,%.o,$(wildcard *.c))
-subdirs := stdio string hashtable ringbuffer
-OBJPATH=$(OBJDIR)/include/ringbuffer/
+subdirs := stdio string hashtable ringbuffer math
+OBJPATH=$(OBJDIR)/include/
 export
 
 all: $(subdirs) $(objects)
diff --git a/src/include/math.h b/src/include/math.h
new file mode 100644
index 00000000..ce4db273
--- /dev/null
+++ b/src/include/math.h
@@ -0,0 +1,6 @@
+#ifndef _MATH_H_INCLUDE
+#define _MATH_H_INCLUDE
+
+long intpow(long base, long exp);
+
+#endif
diff --git a/src/include/math/Makefile b/src/include/math/Makefile
new file mode 100644
index 00000000..e2c521ee
--- /dev/null
+++ b/src/include/math/Makefile
@@ -0,0 +1,12 @@
+objects := $(patsubst %.c,%.o,$(wildcard *.c))
+subdirs :=
+OBJPATH=$(OBJDIR)/include/math/
+export
+
+all: $(subdirs) $(objects)
+	for subdir in $(subdirs) ; do $(MAKE) -C $${subdir} ; done
+
+%.o: %.c
+	$(CC) $(CFLAGS) -o $@ $<
+	mkdir -p $(OBJPATH) 
+	cp $@ $(OBJPATH)/$@
diff --git a/src/include/math/pow.c b/src/include/math/pow.c
new file mode 100644
index 00000000..2bcdbced
--- /dev/null
+++ b/src/include/math/pow.c
@@ -0,0 +1,20 @@
+#include <math.h>
+
+long intpow(long base, long exp){
+	if(exp == 0)
+		return 1;
+
+	long mult = base;
+
+	// this is kinda inefficient but works for now I guess
+
+	// i = 1 because value only really changes when the exponent is 2
+
+	for(int i = 1; i < exp; ++i){
+		base *= mult;
+	}
+
+	return base;
+
+
+}