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-rw-r--r--inf/razno/complexbench.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/inf/razno/complexbench.c b/inf/razno/complexbench.c
new file mode 100644
index 0000000..ceb1129
--- /dev/null
+++ b/inf/razno/complexbench.c
@@ -0,0 +1,43 @@
+#include <complex.h>
+#include <stdio.h>
+#include <time.h>
+#include <stdlib.h>
+struct kompleksno {
+ long double r;
+ long double i;
+};
+struct kompleksno množi (struct kompleksno a, struct kompleksno b) {
+ struct kompleksno r;
+ r.r = (a.r * b.r) - (a.i * b.i /* ii = -1 */);
+ r.i = (a.i * b.r) + (a.r * b.i); /* zakon o distributivnosti */
+ return r;
+}
+struct kompleksno seštej (struct kompleksno a, struct kompleksno b) {
+ a.r += b.r;
+ a.i += b.i;
+ return a;
+}
+int main (int argc, char ** argv) {
+ long double complex c = 0.001 + 0.0001 * I;
+ struct kompleksno k = { .r = 0.001, .i = 0.0001 };
+ long double complex a = -0.5 + 0.55 * I;
+ struct kompleksno s = { .r = -0.5, .i = 0.55 };
+ int število = argc > 1 ? atoi(argv[1]) : 10000;
+ clock_t cikli = clock();
+ for (int i = 0; i < število; i++) {
+ c = c*c + a;
+ if (creall(c) > 0.01 && cimagl(c) < -0.02)
+ c += 0.00003;
+ }
+ fprintf(stderr, "rezultat complex.h: %Lf+%Lfi\n", creall(c), cimagl(c));
+ fprintf(stderr, " porabljen čas: %ld ciklov\n", clock()-cikli);
+ cikli = clock();
+ for (int i = 0; i < število; i++) {
+ k = seštej(množi(k, k), s);
+ if (k.r > 0.01 && k.i < -0.02)
+ k.r += 0.00003;
+ }
+ fprintf(stderr, "rezultat na roke: %Lf+%Lfi\n", k.r, k.i);
+ fprintf(stderr, " porabljen čas: %ld ciklov\n", clock()-cikli);
+ return 0;
+}