old c,cc examples

1 files changed, 29 insertions, 0 deletions

diff --git a/c,cc/vector_addition.c b/c,cc/vector_addition.c
new file mode 100644
index 0000000..decb3ff
--- /dev/null
+++ b/c,cc/vector_addition.c
@@ -0,0 +1,29 @@
+#include "stdio.h"
+#include "stdlib.h"
+
+
+int main(void) {
+  int N = 10000, M=100000;
+  float **x = malloc(N*sizeof(float*));
+  float *y = malloc(M*sizeof(float*));
+  int i,j;
+  for (i = 0; i < N; i++) {
+    x[i] = malloc(M*sizeof(float));
+    for (j = 0; j < M; j++) {
+      x[i][j] = (float) j;
+    }
+  }
+
+  for (i = 0; i < N ; i++) {
+    for (j = 0; j < M; j++) {
+      y[i] += x[i][j];
+    }
+  }
+
+  printf("%f\n", y[100]);
+
+  free(x); free(y);
+
+  return 0;
+}
+