X-Git-Url: https://hackdaworld.org/gitweb/?a=blobdiff_plain;f=random%2Frandom.h;fp=random%2Frandom.h;h=8a212767885730f10fb90759149ecc81a369d15f;hb=3ffe2a08e25fc091b6241885055450009267e2d8;hp=0000000000000000000000000000000000000000;hpb=b040d775deb32173e6536464a3e2ad95a6a5bd55;p=physik%2Fposic.git

diff --git a/random/random.h b/random/random.h
new file mode 100644
index 0000000..8a21276
--- /dev/null
+++ b/random/random.h
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+/*
+ * random.c - random functions header file
+ *
+ * author: Frank Zirkelbach <frank.zirkelbach@physik.uni-augsburg.de> 
+ *
+ */
+
+#ifndef RANDOM_H
+#define RANDOM_H
+
+/* datatypes */
+
+typedef struct s_random {
+	int fd;
+	int logfd;
+	unsigned char status;
+	unsigned int *buffer;
+	unsigned int *b_ptr;
+	double gauss;
+} t_random;
+
+/* defines */
+
+#define RAND_STAT_INITIALIZED		0x01
+#define RAND_STAT_VERBOSE		0x02
+#define RAND_STAT_UDEV			0x04
+#define RAND_STAT_GAUSS			0x08
+
+#define RAND_BUFSIZE 			(1024) /* 16 mega byte */
+
+#define URAND_MAX			0xffffffff
+#define URAND_MAX_PLUS_ONE		0x100000000
+
+/* function prototypes */
+
+int rand_init(t_random *random,char *randomfile,int logfd);
+int rand_close(t_random *random);
+unsigned int rand_get(t_random *random);
+double rand_get_double(t_random *random);
+double rand_get_double_linear(t_random *random,double a,double b);
+double rand_get_gauss(t_random *random);
+unsigned int rand_get_int_linear(t_random *radnom,unsigned int max,
+                                 double a,double b);
+unsigned int rand_get_reject(t_random *random,unsigned int max_x,
+                             unsigned int max_y,unsigned int *graph);
+
+
+#endif /* RANDOM_H */