bitmap: Use const qualifiers where possible

A number of functions in bitmap.h take parameters which they don't modify
but aren't currently marked as const.  This patch fixes that.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

diff --git a/ccan/bitmap/bitmap.h b/ccan/bitmap/bitmap.h
index ee22d4559bf38c27ad3fd6c54900c4b6a8b837da..9841a37a2bf67dd1bc815d2c8c1bd881f1fb1294 100644 (file)
--- a/ccan/bitmap/bitmap.h
+++ b/ccan/bitmap/bitmap.h
@@ -91,7 +91,7 @@ static inline void bitmap_fill(bitmap *bitmap, int nbits)
        memset(bitmap, 0xff, bitmap_sizeof(nbits));
 }
 
        memset(bitmap, 0xff, bitmap_sizeof(nbits));
 }
 

-static inline void bitmap_copy(bitmap *dst, bitmap *src, int nbits)
+static inline void bitmap_copy(bitmap *dst, const bitmap *src, int nbits)

 {
        memcpy(dst, src, bitmap_sizeof(nbits));
 }
 {
        memcpy(dst, src, bitmap_sizeof(nbits));
 }


@@ -113,7 +113,7 @@ BITMAP_DEF_BINOP(andnot, & ~)
 
 #undef BITMAP_DEF_BINOP
 
 
 #undef BITMAP_DEF_BINOP
 

-static inline void bitmap_complement(bitmap *dst, bitmap *src, int nbits)
+static inline void bitmap_complement(bitmap *dst, const bitmap *src, int nbits)

 {
        unsigned int i;
 
 {
        unsigned int i;
 


@@ -121,14 +121,16 @@ static inline void bitmap_complement(bitmap *dst, bitmap *src, int nbits)
                dst[i].w = ~src[i].w;
 }
 
                dst[i].w = ~src[i].w;
 }
 

-static inline bool bitmap_equal(bitmap *src1, bitmap *src2, int nbits)
+static inline bool bitmap_equal(const bitmap *src1, const bitmap *src2,
+                               int nbits)

 {
        return (memcmp(src1, src2, BITMAP_HEADBYTES(nbits)) == 0)
                && (!BITMAP_HASTAIL(nbits)
                    || (BITMAP_TAIL(src1, nbits) == BITMAP_TAIL(src2, nbits)));
 }
 
 {
        return (memcmp(src1, src2, BITMAP_HEADBYTES(nbits)) == 0)
                && (!BITMAP_HASTAIL(nbits)
                    || (BITMAP_TAIL(src1, nbits) == BITMAP_TAIL(src2, nbits)));
 }
 

-static inline bool bitmap_intersects(bitmap *src1, bitmap *src2, int nbits)
+static inline bool bitmap_intersects(const bitmap *src1, const bitmap *src2,
+                                    int nbits)

 {
        unsigned int i;
 
 {
        unsigned int i;
 


@@ -142,7 +144,8 @@ static inline bool bitmap_intersects(bitmap *src1, bitmap *src2, int nbits)
        return false;
 }
 
        return false;
 }
 

-static inline bool bitmap_subset(bitmap *src1, bitmap *src2, int nbits)
+static inline bool bitmap_subset(const bitmap *src1, const bitmap *src2,
+                                int nbits)

 {
        unsigned int i;
 
 {
        unsigned int i;
 


@@ -156,7 +159,7 @@ static inline bool bitmap_subset(bitmap *src1, bitmap *src2, int nbits)
        return true;
 }
 
        return true;
 }
 

-static inline bool bitmap_full(bitmap *bitmap, int nbits)
+static inline bool bitmap_full(const bitmap *bitmap, int nbits)

 {
        unsigned int i;
 
 {
        unsigned int i;
 


@@ -171,7 +174,7 @@ static inline bool bitmap_full(bitmap *bitmap, int nbits)
        return true;
 }
 
        return true;
 }
 

-static inline bool bitmap_empty(bitmap *bitmap, int nbits)
+static inline bool bitmap_empty(const bitmap *bitmap, int nbits)

 {
        unsigned int i;
 
 {
        unsigned int i;