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authorAdam Carpenter <gitlab@53hor.net>2019-07-09 16:00:48 -0400
committerAdam Carpenter <gitlab@53hor.net>2019-07-09 16:00:48 -0400
commit39c0cbcc70aff47e17107826aa76cb525c83b122 (patch)
treedf483af220a11aab49e0e3a76eea54f60efbd424 /ch1/power.c
parent583fc81152e120ec5873f8057f11a894bb8b0a91 (diff)
downloadlearning-c-39c0cbcc70aff47e17107826aa76cb525c83b122.tar.xz
learning-c-39c0cbcc70aff47e17107826aa76cb525c83b122.zip
ch2
Diffstat (limited to 'ch1/power.c')
-rw-r--r--ch1/power.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/ch1/power.c b/ch1/power.c
new file mode 100644
index 0000000..8bca4fd
--- /dev/null
+++ b/ch1/power.c
@@ -0,0 +1,28 @@
+#include<stdio.h>
+
+int power(int m, int n);
+
+/*
+ * Test power function
+ */
+main() {
+ int i;
+
+ for (i = 0; i < 10; ++i)
+ printf("%d %d %d\n", i, power(2, i), power(-3, i));
+
+ return 0;
+}
+
+/*
+ * Raise base to n-th power; n >= 0
+ */
+int power(int base, int n) {
+ int i, p;
+
+ p = 1;
+
+ for (i = 1; i <= n; ++i)
+ p = p * base;
+ return p;
+}