add all old corelib tests

core-test/randomise.c

@@ -0,0 +1,39 @@
+#include <blue/core/random.h>
+#include <printf.h>
+
+#define NRAND_NUMBERS 12
+#define NRAND_BYTES   128
+#define NRAND_DOUBLES 8
+
+int main(void)
+{
+	b_random_ctx random;
+	b_random_init(&random, B_RANDOM_SECURE | B_RANDOM_MT19937);
+
+	printf("generating %d random numbers:\n", NRAND_NUMBERS);
+	for (int i = 0; i < NRAND_NUMBERS; i++) {
+		unsigned long long v = b_random_next_int64(&random);
+		printf("  %llu\n", v);
+	}
+
+	printf("\ngenerating %d random bytes:", NRAND_BYTES);
+	unsigned char bytes[16];
+	for (int i = 0; i < NRAND_BYTES; i++) {
+		if (i == 0 || (i % 16) == 0) {
+			printf("\n  ");
+			b_random_next_bytes(&random, bytes, sizeof bytes);
+		} else if ((i % 4) == 0) {
+			printf(" ");
+		}
+
+		printf("%02x", bytes[i % 16]);
+	}
+
+	printf("\n\ngenerating %d random doubles:\n", NRAND_DOUBLES);
+	for (int i = 0; i < NRAND_DOUBLES; i++) {
+		double v = b_random_next_double(&random);
+		printf("  %lf\n", v);
+	}
+
+	return 0;
+}