From b86e88413d4c6ec428aaedb147f7675f28882fe4 Mon Sep 17 00:00:00 2001
From: drowe67 <david@rowetel.com>
Date: Fri, 14 Jul 2023 12:36:50 +0930
Subject: clang-format -i applied to src unittest misc

---
 src/varicode.c | 781 +++++++++++++++++++++++++++++----------------------------
 1 file changed, 393 insertions(+), 388 deletions(-)

(limited to 'src/varicode.c')

diff --git a/src/varicode.c b/src/varicode.c
index bf7e60c..1025e47 100644
--- a/src/varicode.c
+++ b/src/varicode.c
@@ -23,16 +23,16 @@
 //
 //==========================================================================
 
+#include "varicode.h"
+
 #include <assert.h>
 #include <ctype.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include "varicode.h"
-#include "varicode_table.h"
 
 #include "debug_alloc.h"
-
+#include "varicode_table.h"
 
 /*
   output is an unpacked array of bits of maximum size max_out.  Note
@@ -41,54 +41,54 @@
   Code 1 covers the entire ASCII char set.
 */
 
-int varicode_encode1(short varicode_out[], char ascii_in[], int max_out, int n_in) {
-    int            n_out, index, n_zeros, v_len;
-    unsigned short byte1, byte2, packed;
-    char           c;
-    
-    n_out = 0;
-
-    while(n_in && (n_out < max_out)) {
+int varicode_encode1(short varicode_out[], char ascii_in[], int max_out,
+                     int n_in) {
+  int n_out, index, n_zeros, v_len;
+  unsigned short byte1, byte2, packed;
+  char c;
 
-        c = *ascii_in;
-        if ((unsigned int)c >= 128) {
-            c = ' ';
-        }
+  n_out = 0;
 
-        index = 2*(unsigned int)(c);
-        assert(index <= 254);
-        byte1 = varicode_table1[index];
-        byte2 = varicode_table1[index+1];
-        packed = (byte1 << 8) + byte2;
-
-        //printf("n_in: %d ascii_in: %c index: %d packed 0x%x\n", n_in, *ascii_in, index, packed);
-        ascii_in++;
+  while (n_in && (n_out < max_out)) {
+    c = *ascii_in;
+    if ((unsigned int)c >= 128) {
+      c = ' ';
+    }
 
+    index = 2 * (unsigned int)(c);
+    assert(index <= 254);
+    byte1 = varicode_table1[index];
+    byte2 = varicode_table1[index + 1];
+    packed = (byte1 << 8) + byte2;
+
+    // printf("n_in: %d ascii_in: %c index: %d packed 0x%x\n", n_in, *ascii_in,
+    // index, packed);
+    ascii_in++;
+
+    n_zeros = 0;
+    v_len = 0;
+    while ((n_zeros < 2) && (n_out < max_out) && (v_len <= VARICODE_MAX_BITS)) {
+      if (packed & 0x8000) {
+        *varicode_out = 1;
         n_zeros = 0;
-        v_len = 0;
-        while ((n_zeros < 2) && (n_out < max_out) && (v_len <= VARICODE_MAX_BITS)) {
-            if (packed & 0x8000) {
-                *varicode_out = 1;
-                n_zeros = 0;
-            }
-            else {
-                *varicode_out = 0;
-                n_zeros++;
-            }
-            //printf("packed: 0x%x *varicode_out: %d n_zeros: %d v_len: %d\n", packed, *varicode_out, n_zeros,v_len );
-            packed <<= 1;
-            varicode_out++;
-            n_out++;
-            v_len++;
-        }
-        assert(v_len <= VARICODE_MAX_BITS);
-
-        n_in--;
+      } else {
+        *varicode_out = 0;
+        n_zeros++;
+      }
+      // printf("packed: 0x%x *varicode_out: %d n_zeros: %d v_len: %d\n",
+      // packed, *varicode_out, n_zeros,v_len );
+      packed <<= 1;
+      varicode_out++;
+      n_out++;
+      v_len++;
     }
+    assert(v_len <= VARICODE_MAX_BITS);
 
-    return n_out;
-}
+    n_in--;
+  }
 
+  return n_out;
+}
 
 /*
   Code 2 covers a subset, but is more efficient that Code 1 (282
@@ -96,420 +96,425 @@ int varicode_encode1(short varicode_out[], char ascii_in[], int max_out, int n_i
   replaced by spaces.  We encode/decode two bits at a time.
 */
 
-int varicode_encode2(short varicode_out[], char ascii_in[], int max_out, int n_in) {
-    int            n_out, n_zeros, v_len, i;
-    unsigned short packed;
+int varicode_encode2(short varicode_out[], char ascii_in[], int max_out,
+                     int n_in) {
+  int n_out, n_zeros, v_len, i;
+  unsigned short packed;
+
+  n_out = 0;
 
-    n_out = 0;
+  while (n_in && (n_out < max_out)) {
+    packed = varicode_table2[0];  // default to space if char not found
 
-    while(n_in && (n_out < max_out)) {
+    // see if our character exists
+    for (i = 0; i < sizeof(varicode_table2); i += 2) {
+      if (varicode_table2[i] == *ascii_in)
+        packed = (unsigned short)varicode_table2[i + 1] << 8;
+    }
 
-        packed = varicode_table2[0]; // default to space if char not found
+    // printf("n_in: %d ascii_in: %c index: %d packed 0x%x\n", n_in, *ascii_in,
+    // index, packed);
+    ascii_in++;
 
-        // see if our character exists
-        for(i=0; i<sizeof(varicode_table2); i+=2) {
-            if (varicode_table2[i] == *ascii_in)
-                packed = (unsigned short)varicode_table2[i+1] << 8;
-        }
+    n_zeros = 0;
+    v_len = 0;
+    while ((n_zeros < 2) && (n_out < max_out) && (v_len <= VARICODE_MAX_BITS)) {
+      if (packed & 0x8000)
+        varicode_out[0] = 1;
+      else
+        varicode_out[0] = 0;
 
-        //printf("n_in: %d ascii_in: %c index: %d packed 0x%x\n", n_in, *ascii_in, index, packed);
-        ascii_in++;
+      if (packed & 0x4000)
+        varicode_out[1] = 1;
+      else
+        varicode_out[1] = 0;
 
+      if (packed & 0xc000)
         n_zeros = 0;
-        v_len = 0;
-        while ((n_zeros < 2) && (n_out < max_out) && (v_len <= VARICODE_MAX_BITS)) {
-            if (packed & 0x8000)
-                varicode_out[0] = 1;
-            else
-                varicode_out[0] = 0;
-
-            if (packed & 0x4000)
-                varicode_out[1] = 1;
-            else
-                varicode_out[1] = 0;
-
-            if (packed & 0xc000)
-                n_zeros = 0;
-            else
-                n_zeros += 2;
-
-            //printf("packed: 0x%x *varicode_out: %d n_zeros: %d v_len: %d\n", packed, *varicode_out, n_zeros,v_len );
-            packed <<= 2;
-            varicode_out +=2;
-            n_out += 2;
-            v_len += 2;
-        }
-        assert(v_len <= VARICODE_MAX_BITS);
-
-        n_in--;
+      else
+        n_zeros += 2;
+
+      // printf("packed: 0x%x *varicode_out: %d n_zeros: %d v_len: %d\n",
+      // packed, *varicode_out, n_zeros,v_len );
+      packed <<= 2;
+      varicode_out += 2;
+      n_out += 2;
+      v_len += 2;
     }
+    assert(v_len <= VARICODE_MAX_BITS);
 
-    assert((n_out % 2) == 0);  /* outputs two bits at a time */
+    n_in--;
+  }
 
-    return n_out;
-}
+  assert((n_out % 2) == 0); /* outputs two bits at a time */
 
-/* Code 3 simply allows the modem to pass incoming/outgoing bits to/from higher levels
-   in the code. */
-int varicode_encode3(short varicode_out[], char ascii_in[], int max_out, int n_in)
-{
-    // We only support one bit at a time.
-    assert(max_out >= 1 && n_in == 1);
-    
-    varicode_out[0] = ascii_in[0] != 0;
-    return 1;
+  return n_out;
 }
 
-int varicode_encode(short varicode_out[], char ascii_in[], int max_out, int n_in, int code_num) {
+/* Code 3 simply allows the modem to pass incoming/outgoing bits to/from higher
+   levels in the code. */
+int varicode_encode3(short varicode_out[], char ascii_in[], int max_out,
+                     int n_in) {
+  // We only support one bit at a time.
+  assert(max_out >= 1 && n_in == 1);
 
-    assert((code_num == 1) || (code_num == 2) || (code_num == 3));
-
-    if (code_num == 1)
-        return varicode_encode1(varicode_out, ascii_in, max_out, n_in);
-    else if (code_num == 2)
-        return varicode_encode2(varicode_out, ascii_in, max_out, n_in);
-    else
-        return varicode_encode3(varicode_out, ascii_in, max_out, n_in);
+  varicode_out[0] = ascii_in[0] != 0;
+  return 1;
 }
 
+int varicode_encode(short varicode_out[], char ascii_in[], int max_out,
+                    int n_in, int code_num) {
+  assert((code_num == 1) || (code_num == 2) || (code_num == 3));
 
-void varicode_decode_init(struct VARICODE_DEC *dec_states, int code_num)
-{
-    assert((code_num == 1) || (code_num == 2) || (code_num == 3));
-
-    dec_states->state = 0;
-    dec_states->n_zeros = 0;
-    dec_states->v_len = 0;
-    dec_states->packed = 0;
-    dec_states->code_num = code_num;
-    dec_states->n_in = 0;
-    dec_states->in[0] = dec_states->in[1] = 0;
+  if (code_num == 1)
+    return varicode_encode1(varicode_out, ascii_in, max_out, n_in);
+  else if (code_num == 2)
+    return varicode_encode2(varicode_out, ascii_in, max_out, n_in);
+  else
+    return varicode_encode3(varicode_out, ascii_in, max_out, n_in);
 }
 
+void varicode_decode_init(struct VARICODE_DEC *dec_states, int code_num) {
+  assert((code_num == 1) || (code_num == 2) || (code_num == 3));
 
-void varicode_set_code_num(struct VARICODE_DEC *dec_states, int code_num)
-{
-    assert((code_num == 1) || (code_num == 2) || (code_num == 3));
-    dec_states->code_num = code_num;
+  dec_states->state = 0;
+  dec_states->n_zeros = 0;
+  dec_states->v_len = 0;
+  dec_states->packed = 0;
+  dec_states->code_num = code_num;
+  dec_states->n_in = 0;
+  dec_states->in[0] = dec_states->in[1] = 0;
 }
 
+void varicode_set_code_num(struct VARICODE_DEC *dec_states, int code_num) {
+  assert((code_num == 1) || (code_num == 2) || (code_num == 3));
+  dec_states->code_num = code_num;
+}
 
 /* Code 1 decode function, accepts one bit at a time */
 
-static int decode_one_bit(struct VARICODE_DEC *s, char *single_ascii, short varicode_in, int long_code)
-{
-    int            found=0, i;
-    unsigned short byte1, byte2;
+static int decode_one_bit(struct VARICODE_DEC *s, char *single_ascii,
+                          short varicode_in, int long_code) {
+  int found = 0, i;
+  unsigned short byte1, byte2;
 
-    //printf("decode_one_bit : state: %d varicode_in: %d packed: 0x%x n_zeros: %d\n",
-    //       s->state, varicode_in, s->packed, s->n_zeros);
+  // printf("decode_one_bit : state: %d varicode_in: %d packed: 0x%x n_zeros:
+  // %d\n",
+  //        s->state, varicode_in, s->packed, s->n_zeros);
 
-    if (s->state == 0) {
-        if (!varicode_in)
-            return 0;
-        else
-            s->state = 1;
+  if (s->state == 0) {
+    if (!varicode_in)
+      return 0;
+    else
+      s->state = 1;
+  }
+
+  if (s->state == 1) {
+    if (varicode_in) {
+      s->packed |= (0x8000 >> s->v_len);
+      s->n_zeros = 0;
+    } else {
+      s->n_zeros++;
     }
-
-    if (s->state == 1) {
-        if (varicode_in) {
-            s->packed |= (0x8000 >> s->v_len);
-            s->n_zeros = 0;
-        }
-        else {
-            s->n_zeros++;
-        }
-        s->v_len++;
-        found = 0;
-
-        /* end of character code */
-
-        if (s->n_zeros == 2) {
-            if (s->v_len) {
-                /* run thru table but note with bit errors we might not actually find a match */
-
-                byte1 = s->packed >> 8;
-                //printf("looking for byte1 : 0x%x ... ", byte1);
-                byte2 = s->packed & 0xff;
-
-                for(i=0; i<128; i++) {
-                    if ((byte1 == varicode_table1[2*i]) && (byte2 == varicode_table1[2*i+1])) {
-                        found = 1;
-                        *single_ascii = i;
-                    }
-                }
-            }
-            varicode_decode_init(s, s->code_num);
+    s->v_len++;
+    found = 0;
+
+    /* end of character code */
+
+    if (s->n_zeros == 2) {
+      if (s->v_len) {
+        /* run thru table but note with bit errors we might not actually find a
+         * match */
+
+        byte1 = s->packed >> 8;
+        // printf("looking for byte1 : 0x%x ... ", byte1);
+        byte2 = s->packed & 0xff;
+
+        for (i = 0; i < 128; i++) {
+          if ((byte1 == varicode_table1[2 * i]) &&
+              (byte2 == varicode_table1[2 * i + 1])) {
+            found = 1;
+            *single_ascii = i;
+          }
         }
+      }
+      varicode_decode_init(s, s->code_num);
+    }
 
-        /* code can run too long if we have a bit error */
+    /* code can run too long if we have a bit error */
 
-        if (s->v_len > VARICODE_MAX_BITS)
-            varicode_decode_init(s, s->code_num);
-    }
+    if (s->v_len > VARICODE_MAX_BITS) varicode_decode_init(s, s->code_num);
+  }
 
-    return found;
+  return found;
 }
 
-
 /* Code 2 decode function, accepts two bits at a time */
 
-static int decode_two_bits(struct VARICODE_DEC *s, char *single_ascii, short varicode_in1, short varicode_in2)
-{
-    int            found=0, i;
-    unsigned short byte1;
-
-    if (s->state == 0) {
-        if (!(varicode_in1 || varicode_in2))
-            return 0;
-        else
-            s->state = 1;
-    }
-
-    if (s->state == 1) {
-        if (varicode_in1)
-            s->packed |= (0x8000 >> s->v_len);
-        if (varicode_in2)
-            s->packed |= (0x4000 >> s->v_len);
-        if (varicode_in1 || varicode_in2)
-            s->n_zeros = 0;
-        else
-            s->n_zeros+=2;
-
-        s->v_len+=2;
-
-        found = 0;
-
-        /* end of character code */
-
-        if (s->n_zeros == 2) {
-            if (s->v_len) {
-                /* run thru table but note with bit errors we might not actually find a match */
-
-                byte1 = s->packed >> 8;
-                //printf("looking for byte1 : 0x%x ... ", byte1);
-                for(i=0; i<sizeof(varicode_table2); i+=2) {
-                    //printf("byte1: 0x%x 0x%x\n", byte1, (unsigned char)varicode_table2[i+1]);
-                    if (byte1 == (unsigned char)varicode_table2[i+1]) {
-                        found = 1;
-                        *single_ascii = varicode_table2[i];
-                        //printf("found: %d i=%d char=%c ", found, i, *single_ascii);
-                    }
-                }
-            }
-            varicode_decode_init(s, s->code_num);
-        }
-
-        /* code can run too long if we have a bit error */
-
-        if (s->v_len > VARICODE_MAX_BITS)
-            varicode_decode_init(s, s->code_num);
-    }
-
-    return found;
-}
+static int decode_two_bits(struct VARICODE_DEC *s, char *single_ascii,
+                           short varicode_in1, short varicode_in2) {
+  int found = 0, i;
+  unsigned short byte1;
 
+  if (s->state == 0) {
+    if (!(varicode_in1 || varicode_in2))
+      return 0;
+    else
+      s->state = 1;
+  }
+
+  if (s->state == 1) {
+    if (varicode_in1) s->packed |= (0x8000 >> s->v_len);
+    if (varicode_in2) s->packed |= (0x4000 >> s->v_len);
+    if (varicode_in1 || varicode_in2)
+      s->n_zeros = 0;
+    else
+      s->n_zeros += 2;
 
-int varicode_decode1(struct VARICODE_DEC *dec_states, char ascii_out[], short varicode_in[], int max_out, int n_in) {
-    int            output, n_out;
-    char           single_ascii = 0;
+    s->v_len += 2;
 
-    n_out = 0;
+    found = 0;
 
-    //printf("varicode_decode: n_in: %d\n", n_in);
+    /* end of character code */
 
-    while(n_in && (n_out < max_out)) {
-        output = decode_one_bit(dec_states, &single_ascii, varicode_in[0], 0);
-        varicode_in++;
-        n_in--;
+    if (s->n_zeros == 2) {
+      if (s->v_len) {
+        /* run thru table but note with bit errors we might not actually find a
+         * match */
 
-        if (output) {
-            *ascii_out++ = single_ascii;
-            n_out++;
+        byte1 = s->packed >> 8;
+        // printf("looking for byte1 : 0x%x ... ", byte1);
+        for (i = 0; i < sizeof(varicode_table2); i += 2) {
+          // printf("byte1: 0x%x 0x%x\n", byte1, (unsigned
+          // char)varicode_table2[i+1]);
+          if (byte1 == (unsigned char)varicode_table2[i + 1]) {
+            found = 1;
+            *single_ascii = varicode_table2[i];
+            // printf("found: %d i=%d char=%c ", found, i, *single_ascii);
+          }
         }
+      }
+      varicode_decode_init(s, s->code_num);
     }
 
-    return n_out;
-}
+    /* code can run too long if we have a bit error */
 
+    if (s->v_len > VARICODE_MAX_BITS) varicode_decode_init(s, s->code_num);
+  }
 
-int varicode_decode2(struct VARICODE_DEC *dec_states, char ascii_out[], short varicode_in[], int max_out, int n_in) {
-    int            output, n_out;
-    char           single_ascii = 0;
+  return found;
+}
 
-    n_out = 0;
+int varicode_decode1(struct VARICODE_DEC *dec_states, char ascii_out[],
+                     short varicode_in[], int max_out, int n_in) {
+  int output, n_out;
+  char single_ascii = 0;
 
-    //printf("varicode_decode2: n_in: %d varicode_in[0] %d dec_states->n_in: %d\n", n_in, varicode_in[0], dec_states->n_in);
-    //printf("%d ", varicode_in[0]);
-    while(n_in && (n_out < max_out)) {
+  n_out = 0;
 
-        // keep two bit buffer so we can process two at a time
+  // printf("varicode_decode: n_in: %d\n", n_in);
 
-        dec_states->in[0] = dec_states->in[1];
-        dec_states->in[1] = varicode_in[0];
-        dec_states->n_in++;
-        varicode_in++;
-        n_in--;
+  while (n_in && (n_out < max_out)) {
+    output = decode_one_bit(dec_states, &single_ascii, varicode_in[0], 0);
+    varicode_in++;
+    n_in--;
 
-        if (dec_states->n_in == 2) {
-            output = decode_two_bits(dec_states, &single_ascii, dec_states->in[0], dec_states->in[1]);
+    if (output) {
+      *ascii_out++ = single_ascii;
+      n_out++;
+    }
+  }
 
-            dec_states->n_in = 0;
+  return n_out;
+}
 
-            if (output) {
-                //printf("  output: %d single_ascii: 0x%x %c\n", output, (int)single_ascii, single_ascii);
-                *ascii_out++ = single_ascii;
-                n_out++;
-            }
-        }
+int varicode_decode2(struct VARICODE_DEC *dec_states, char ascii_out[],
+                     short varicode_in[], int max_out, int n_in) {
+  int output, n_out;
+  char single_ascii = 0;
+
+  n_out = 0;
+
+  // printf("varicode_decode2: n_in: %d varicode_in[0] %d dec_states->n_in:
+  // %d\n", n_in, varicode_in[0], dec_states->n_in); printf("%d ",
+  // varicode_in[0]);
+  while (n_in && (n_out < max_out)) {
+    // keep two bit buffer so we can process two at a time
+
+    dec_states->in[0] = dec_states->in[1];
+    dec_states->in[1] = varicode_in[0];
+    dec_states->n_in++;
+    varicode_in++;
+    n_in--;
+
+    if (dec_states->n_in == 2) {
+      output = decode_two_bits(dec_states, &single_ascii, dec_states->in[0],
+                               dec_states->in[1]);
+
+      dec_states->n_in = 0;
+
+      if (output) {
+        // printf("  output: %d single_ascii: 0x%x %c\n", output,
+        // (int)single_ascii, single_ascii);
+        *ascii_out++ = single_ascii;
+        n_out++;
+      }
     }
+  }
 
-    return n_out;
+  return n_out;
 }
 
-int varicode_decode3(struct VARICODE_DEC *dec_states, char ascii_out[], short varicode_in[], int max_out, int n_in) 
-{
-    // We only handle one bit at a time.
-    assert(max_out == 1 && n_in == 1);
-    
-    ascii_out[0] = varicode_in[0] != 0;
-    return 1;
-}
+int varicode_decode3(struct VARICODE_DEC *dec_states, char ascii_out[],
+                     short varicode_in[], int max_out, int n_in) {
+  // We only handle one bit at a time.
+  assert(max_out == 1 && n_in == 1);
 
-int varicode_decode(struct VARICODE_DEC *dec_states, char ascii_out[], short varicode_in[], int max_out, int n_in) {
-    if (dec_states->code_num == 1)
-        return varicode_decode1(dec_states, ascii_out, varicode_in, max_out, n_in);
-    else if (dec_states->code_num == 2)
-        return varicode_decode2(dec_states, ascii_out, varicode_in, max_out, n_in);
-    else
-        return varicode_decode3(dec_states, ascii_out, varicode_in, max_out, n_in);
+  ascii_out[0] = varicode_in[0] != 0;
+  return 1;
 }
 
+int varicode_decode(struct VARICODE_DEC *dec_states, char ascii_out[],
+                    short varicode_in[], int max_out, int n_in) {
+  if (dec_states->code_num == 1)
+    return varicode_decode1(dec_states, ascii_out, varicode_in, max_out, n_in);
+  else if (dec_states->code_num == 2)
+    return varicode_decode2(dec_states, ascii_out, varicode_in, max_out, n_in);
+  else
+    return varicode_decode3(dec_states, ascii_out, varicode_in, max_out, n_in);
+}
 
 #ifdef VARICODE_UNITTEST
 void test_varicode(int code_num) {
-    char *ascii_in;
-    short *varicode;
-    int  i, n_varicode_bits_out, n_ascii_chars_out, length, half, n_out, j, len;
-    char *ascii_out;
-    struct VARICODE_DEC dec_states;
-
-    if (code_num == 1) {
-        printf("long code:\n");
-        length = sizeof(varicode_table1)/2;
-    }
-    else {
-        printf("short code:\n");
-        length = sizeof(varicode_table2)/2;
-    }
-    //length = 10;
-    ascii_in = (char*)MALLOC(length);
-    varicode = (short*)MALLOC(VARICODE_MAX_BITS*sizeof(short)*length);
-    ascii_out = (char*)MALLOC(length);
-
-    // 1. test all Varicode codes -------------------------------------------------------------
-
-    if (code_num == 1) {
-        for(i=0; i<length; i++)
-            ascii_in[i] = (char)i;
-    }
-    else {
-        for(i=0; i<length; i++)
-            ascii_in[i] = varicode_table2[2*i];
-    }
-    //printf("  ascii_in: %s\n", ascii_in);
-    n_varicode_bits_out = varicode_encode(varicode, ascii_in, VARICODE_MAX_BITS*length, length, code_num);
-
-    printf("  n_varicode_bits_out: %d\n", n_varicode_bits_out);
-    //for(i=0; i<n_varicode_bits_out; i++) {
-    //    printf("%d \n", varicode[i]);
-    //}
-
-    // split decode in half to test how it preserves state between calls
-
-    varicode_decode_init(&dec_states, code_num);
-    half = n_varicode_bits_out/2;
-    n_ascii_chars_out  = varicode_decode(&dec_states, ascii_out, varicode, length, half);
-    // printf("  n_ascii_chars_out: %d\n", n_ascii_chars_out);
-
-    n_ascii_chars_out += varicode_decode(&dec_states, &ascii_out[n_ascii_chars_out],
-                                         &varicode[half], length-n_ascii_chars_out, n_varicode_bits_out - half);
-    assert(n_ascii_chars_out == length);
-
-    printf("  n_ascii_chars_out: %d\n", n_ascii_chars_out);
-    printf("  average bits/character: %3.2f\n", (float)n_varicode_bits_out/n_ascii_chars_out);
-
-    //printf("ascii_out: %s\n", ascii_out);
-
-    if (memcmp(ascii_in, ascii_out, length) == 0)
-        printf("  Test 1 Pass\n");
+  char *ascii_in;
+  short *varicode;
+  int i, n_varicode_bits_out, n_ascii_chars_out, length, half, n_out, j, len;
+  char *ascii_out;
+  struct VARICODE_DEC dec_states;
+
+  if (code_num == 1) {
+    printf("long code:\n");
+    length = sizeof(varicode_table1) / 2;
+  } else {
+    printf("short code:\n");
+    length = sizeof(varicode_table2) / 2;
+  }
+  // length = 10;
+  ascii_in = (char *)MALLOC(length);
+  varicode = (short *)MALLOC(VARICODE_MAX_BITS * sizeof(short) * length);
+  ascii_out = (char *)MALLOC(length);
+
+  // 1. test all Varicode codes
+  // -------------------------------------------------------------
+
+  if (code_num == 1) {
+    for (i = 0; i < length; i++) ascii_in[i] = (char)i;
+  } else {
+    for (i = 0; i < length; i++) ascii_in[i] = varicode_table2[2 * i];
+  }
+  // printf("  ascii_in: %s\n", ascii_in);
+  n_varicode_bits_out = varicode_encode(
+      varicode, ascii_in, VARICODE_MAX_BITS * length, length, code_num);
+
+  printf("  n_varicode_bits_out: %d\n", n_varicode_bits_out);
+  // for(i=0; i<n_varicode_bits_out; i++) {
+  //     printf("%d \n", varicode[i]);
+  // }
+
+  // split decode in half to test how it preserves state between calls
+
+  varicode_decode_init(&dec_states, code_num);
+  half = n_varicode_bits_out / 2;
+  n_ascii_chars_out =
+      varicode_decode(&dec_states, ascii_out, varicode, length, half);
+  // printf("  n_ascii_chars_out: %d\n", n_ascii_chars_out);
+
+  n_ascii_chars_out += varicode_decode(
+      &dec_states, &ascii_out[n_ascii_chars_out], &varicode[half],
+      length - n_ascii_chars_out, n_varicode_bits_out - half);
+  assert(n_ascii_chars_out == length);
+
+  printf("  n_ascii_chars_out: %d\n", n_ascii_chars_out);
+  printf("  average bits/character: %3.2f\n",
+         (float)n_varicode_bits_out / n_ascii_chars_out);
+
+  // printf("ascii_out: %s\n", ascii_out);
+
+  if (memcmp(ascii_in, ascii_out, length) == 0)
+    printf("  Test 1 Pass\n");
+  else
+    printf("  Test 1 Fail\n");
+
+  // 2. Test some ascii with a run of zeros
+  // -----------------------------------------------------
+
+  sprintf(ascii_in, "CQ CQ CQ this is VK5DGR");
+
+  assert(strlen(ascii_in) < length);
+  if (code_num == 2)
+    for (i = 0; i < strlen(ascii_in); i++) ascii_in[i] = tolower(ascii_in[i]);
+
+  for (i = 0; i < 3; i++) {
+    n_varicode_bits_out =
+        varicode_encode(varicode, ascii_in, VARICODE_MAX_BITS * length,
+                        strlen(ascii_in), code_num);
+    n_ascii_chars_out = varicode_decode(&dec_states, ascii_out, varicode,
+                                        length, n_varicode_bits_out);
+    ascii_out[n_ascii_chars_out] = 0;
+
+    printf("  ascii_out: %s\n", ascii_out);
+    if (strcmp(ascii_in, ascii_out) == 0)
+      printf("  Test 2 Pass\n");
     else
-        printf("  Test 1 Fail\n");
-
-    // 2. Test some ascii with a run of zeros -----------------------------------------------------
-
-    sprintf(ascii_in, "CQ CQ CQ this is VK5DGR");
-
-    assert(strlen(ascii_in) < length);
-    if (code_num == 2)
-        for(i=0; i<strlen(ascii_in); i++)
-            ascii_in[i] = tolower(ascii_in[i]);
-
-    for(i=0; i<3; i++) {
-        n_varicode_bits_out = varicode_encode(varicode, ascii_in, VARICODE_MAX_BITS*length, strlen(ascii_in), code_num);
-        n_ascii_chars_out   = varicode_decode(&dec_states, ascii_out, varicode, length, n_varicode_bits_out);
-        ascii_out[n_ascii_chars_out] = 0;
-
-        printf("  ascii_out: %s\n", ascii_out);
-        if (strcmp(ascii_in, ascii_out) == 0)
-            printf("  Test 2 Pass\n");
-        else
-            printf("  Test 2 Fail\n");
-
-        memset(varicode, 0, sizeof(short)*20);
-        n_ascii_chars_out = varicode_decode(&dec_states, ascii_out, varicode, length, 20);
-        assert(n_ascii_chars_out == 0);
+      printf("  Test 2 Fail\n");
+
+    memset(varicode, 0, sizeof(short) * 20);
+    n_ascii_chars_out =
+        varicode_decode(&dec_states, ascii_out, varicode, length, 20);
+    assert(n_ascii_chars_out == 0);
+  }
+
+  // 3. Test receiving one bit at a time
+  // -----------------------------------------------------
+
+  sprintf(ascii_in, "s=vk5dgr qth=adelaide");
+  len = strlen(ascii_in);
+  ascii_in[len] = 13;
+  ascii_in[len + 1] = 0;
+
+  assert(strlen(ascii_in) < length);
+  if (code_num == 2)
+    for (i = 0; i < strlen(ascii_in); i++) ascii_in[i] = tolower(ascii_in[i]);
+
+  for (i = 0; i < 3; i++) {
+    n_varicode_bits_out =
+        varicode_encode(varicode, ascii_in, VARICODE_MAX_BITS * length,
+                        strlen(ascii_in), code_num);
+    printf("n_varicode_bits_out: %d\n", n_varicode_bits_out);
+
+    n_ascii_chars_out = 0;
+    for (j = 0; j < n_varicode_bits_out; j++) {
+      n_out = varicode_decode(&dec_states, &ascii_out[n_ascii_chars_out],
+                              &varicode[j], 1, 1);
+      if (n_out) n_ascii_chars_out++;
     }
+    ascii_out[n_ascii_chars_out] = 0;
 
-    // 3. Test receiving one bit at a time -----------------------------------------------------
-
-    sprintf(ascii_in, "s=vk5dgr qth=adelaide");
-    len = strlen(ascii_in);
-    ascii_in[len] = 13;
-    ascii_in[len+1] = 0;
-
-    assert(strlen(ascii_in) < length);
-    if (code_num == 2)
-        for(i=0; i<strlen(ascii_in); i++)
-            ascii_in[i] = tolower(ascii_in[i]);
-
-    for(i=0; i<3; i++) {
-        n_varicode_bits_out = varicode_encode(varicode, ascii_in, VARICODE_MAX_BITS*length, strlen(ascii_in), code_num);
-        printf("n_varicode_bits_out: %d\n", n_varicode_bits_out);
-
-        n_ascii_chars_out = 0;
-        for(j=0; j<n_varicode_bits_out; j++) {
-            n_out = varicode_decode(&dec_states, &ascii_out[n_ascii_chars_out], &varicode[j], 1, 1);
-            if (n_out)
-                n_ascii_chars_out++;
-        }
-        ascii_out[n_ascii_chars_out] = 0;
-
-        printf("  ascii_out: %s\n", ascii_out);
-        if (strcmp(ascii_in, ascii_out) == 0)
-            printf("  Test 3 Pass\n");
-        else
-            printf("  Test 3 Fail\n");
-    }
+    printf("  ascii_out: %s\n", ascii_out);
+    if (strcmp(ascii_in, ascii_out) == 0)
+      printf("  Test 3 Pass\n");
+    else
+      printf("  Test 3 Fail\n");
+  }
 
-    FREE(ascii_in);
-    FREE(ascii_out);
-    FREE(varicode);
+  FREE(ascii_in);
+  FREE(ascii_out);
+  FREE(varicode);
 }
 
 int main(void) {
-    test_varicode(1);
-    test_varicode(2);
-    return 0;
+  test_varicode(1);
+  test_varicode(2);
+  return 0;
 }
 #endif
-- 
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