[hackers] [libzahl] Add typedef zahl_char_t for internal use || Mattias Andrée

[git]

commit 465749ec6de871ae244ebe6d3264c71eeb728fcc
Author:     Mattias Andrée <maand...@kth.se>
AuthorDate: Tue Mar 1 19:41:04 2016 +0100
Commit:     Mattias Andrée <maand...@kth.se>
CommitDate: Tue Mar 1 19:41:04 2016 +0100

    Add typedef zahl_char_t for internal use
    
    Signed-off-by: Mattias Andrée <maand...@kth.se>

diff --git a/src/internals.h b/src/internals.h
index cc2d034..df973fb 100644
--- a/src/internals.h
+++ b/src/internals.h
@@ -2,8 +2,10 @@
 #include "../zahl.h"
 
 #define BITS_PER_CHAR                32
-#define FLOOR_BITS_TO_CHARS(bits)    ((bits) >> 5)
-#define CEILING_BITS_TO_CHARS(bits)  (((bits) + (BITS_PER_CHAR - 1)) >> 5)
+#define LB_BITS_PER_CHAR             5
+
+#define FLOOR_BITS_TO_CHARS(bits)    ((bits) >> LB_BITS_PER_CHAR)
+#define CEILING_BITS_TO_CHARS(bits)  (((bits) + (BITS_PER_CHAR - 1)) >> 
LB_BITS_PER_CHAR)
 #define BITS_IN_LAST_CHAR(bits)      ((bits) & (BITS_PER_CHAR - 1))
 
 #define LIST_TEMPS\
diff --git a/src/zbits.c b/src/zbits.c
index 014294e..8ada62f 100644
--- a/src/zbits.c
+++ b/src/zbits.c
@@ -6,7 +6,7 @@ size_t
 zbits(z_t a)
 {
        size_t i;
-       uint32_t x;
+       zahl_char_t x;
        if (zzero(a)) {
                return 1;
        }
diff --git a/src/zlsb.c b/src/zlsb.c
index 2952a05..d63752e 100644
--- a/src/zlsb.c
+++ b/src/zlsb.c
@@ -6,7 +6,7 @@ size_t
 zlsb(z_t a)
 {
        size_t i = 0;
-       uint32_t x;
+       zahl_char_t x;
        if (zzero(a)) {
                return SIZE_MAX;
        }
diff --git a/src/zsetu.c b/src/zsetu.c
index 385403c..dd1be17 100644
--- a/src/zsetu.c
+++ b/src/zsetu.c
@@ -18,7 +18,7 @@ zsetu(z_t a, unsigned long long int b)
        SET_SIGNUM(a, 1);
        a->used = 0;
        while (b) {
-               a->chars[a->used++] = (uint32_t)b;
+               a->chars[a->used++] = (zahl_char_t)b;
                b >>= BITS_PER_CHAR;
        }
 }
diff --git a/zahl.h b/zahl.h
index e2634a8..c39510f 100644
--- a/zahl.h
+++ b/zahl.h
@@ -9,12 +9,15 @@
 
 
 
+/* You should pretend like this typedef does not exist. */
+typedef uint32_t zahl_char_t;
+
 /* This structure should be considered opaque. */
 typedef struct {
         int sign;
         size_t used;
         size_t alloced;
-        uint32_t *chars;
+        zahl_char_t *chars;
 } z_t[1];