From 258e1b92ebbfdebefabc120969ab87c3d8b75c3d Mon Sep 17 00:00:00 2001 From: Patrick Simianer Date: Sun, 15 Jun 2014 03:50:12 +0200 Subject: old c,cc examples --- c,cc/vector_addition.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 c,cc/vector_addition.c (limited to 'c,cc/vector_addition.c') 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; +} + -- cgit v1.2.3