/* The MIT License
- Copyright (c) 2008 Genome Research Ltd (GRL).
+ Copyright (c) 2008, 2009, 2011 by Attractive Chaos <attractor@live.co.uk>
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
SOFTWARE.
*/
-/* Contact: Heng Li <lh3@sanger.ac.uk> */
-
/*
An example:
*/
/*
+ 2011-02-14 (0.2.5):
+
+ * Allow to declare global functions.
+
+ 2009-09-26 (0.2.4):
+
+ * Improve portability
+
2008-09-19 (0.2.3):
* Corrected the example
@copyright Heng Li
*/
-#define AC_VERSION_KHASH_H "0.2.2"
+#define AC_VERSION_KHASH_H "0.2.5"
-#include <stdint.h>
#include <stdlib.h>
#include <string.h>
+#include <limits.h>
+
+/* compipler specific configuration */
+
+#if UINT_MAX == 0xffffffffu
+typedef unsigned int khint32_t;
+#elif ULONG_MAX == 0xffffffffu
+typedef unsigned long khint32_t;
+#endif
+
+#if ULONG_MAX == ULLONG_MAX
+typedef unsigned long khint64_t;
+#else
+typedef unsigned long long khint64_t;
+#endif
+
+#ifdef _MSC_VER
+#define inline __inline
+#endif
-typedef uint32_t khint_t;
+typedef khint32_t khint_t;
typedef khint_t khiter_t;
#define __ac_HASH_PRIME_SIZE 32
-static const uint32_t __ac_prime_list[__ac_HASH_PRIME_SIZE] =
+static const khint32_t __ac_prime_list[__ac_HASH_PRIME_SIZE] =
{
0ul, 3ul, 11ul, 23ul, 53ul,
97ul, 193ul, 389ul, 769ul, 1543ul,
static const double __ac_HASH_UPPER = 0.77;
-#define KHASH_INIT(name, khkey_t, khval_t, kh_is_map, __hash_func, __hash_equal) \
+#define KHASH_DECLARE(name, khkey_t, khval_t) \
+ typedef struct { \
+ khint_t n_buckets, size, n_occupied, upper_bound; \
+ khint32_t *flags; \
+ khkey_t *keys; \
+ khval_t *vals; \
+ } kh_##name##_t; \
+ extern kh_##name##_t *kh_init_##name(); \
+ extern void kh_destroy_##name(kh_##name##_t *h); \
+ extern void kh_clear_##name(kh_##name##_t *h); \
+ extern khint_t kh_get_##name(const kh_##name##_t *h, khkey_t key); \
+ extern void kh_resize_##name(kh_##name##_t *h, khint_t new_n_buckets); \
+ extern khint_t kh_put_##name(kh_##name##_t *h, khkey_t key, int *ret); \
+ extern void kh_del_##name(kh_##name##_t *h, khint_t x);
+
+#define KHASH_INIT2(name, SCOPE, khkey_t, khval_t, kh_is_map, __hash_func, __hash_equal) \
typedef struct { \
khint_t n_buckets, size, n_occupied, upper_bound; \
- uint32_t *flags; \
+ khint32_t *flags; \
khkey_t *keys; \
khval_t *vals; \
} kh_##name##_t; \
- static inline kh_##name##_t *kh_init_##name() { \
+ SCOPE kh_##name##_t *kh_init_##name() { \
return (kh_##name##_t*)calloc(1, sizeof(kh_##name##_t)); \
} \
- static inline void kh_destroy_##name(kh_##name##_t *h) \
+ SCOPE void kh_destroy_##name(kh_##name##_t *h) \
{ \
if (h) { \
free(h->keys); free(h->flags); \
free(h); \
} \
} \
- static inline void kh_clear_##name(kh_##name##_t *h) \
+ SCOPE void kh_clear_##name(kh_##name##_t *h) \
{ \
if (h && h->flags) { \
- memset(h->flags, 0xaa, ((h->n_buckets>>4) + 1) * sizeof(uint32_t)); \
+ memset(h->flags, 0xaa, ((h->n_buckets>>4) + 1) * sizeof(khint32_t)); \
h->size = h->n_occupied = 0; \
} \
} \
- static inline khint_t kh_get_##name(const kh_##name##_t *h, khkey_t key) \
+ SCOPE khint_t kh_get_##name(const kh_##name##_t *h, khkey_t key) \
{ \
if (h->n_buckets) { \
khint_t inc, k, i, last; \
return __ac_iseither(h->flags, i)? h->n_buckets : i; \
} else return 0; \
} \
- static inline void kh_resize_##name(kh_##name##_t *h, khint_t new_n_buckets) \
+ SCOPE void kh_resize_##name(kh_##name##_t *h, khint_t new_n_buckets) \
{ \
- uint32_t *new_flags = 0; \
+ khint32_t *new_flags = 0; \
khint_t j = 1; \
{ \
khint_t t = __ac_HASH_PRIME_SIZE - 1; \
new_n_buckets = __ac_prime_list[t+1]; \
if (h->size >= (khint_t)(new_n_buckets * __ac_HASH_UPPER + 0.5)) j = 0; \
else { \
- new_flags = (uint32_t*)malloc(((new_n_buckets>>4) + 1) * sizeof(uint32_t)); \
- memset(new_flags, 0xaa, ((new_n_buckets>>4) + 1) * sizeof(uint32_t)); \
+ new_flags = (khint32_t*)malloc(((new_n_buckets>>4) + 1) * sizeof(khint32_t)); \
+ memset(new_flags, 0xaa, ((new_n_buckets>>4) + 1) * sizeof(khint32_t)); \
if (h->n_buckets < new_n_buckets) { \
h->keys = (khkey_t*)realloc(h->keys, new_n_buckets * sizeof(khkey_t)); \
if (kh_is_map) \
h->upper_bound = (khint_t)(h->n_buckets * __ac_HASH_UPPER + 0.5); \
} \
} \
- static inline khint_t kh_put_##name(kh_##name##_t *h, khkey_t key, int *ret) \
+ SCOPE khint_t kh_put_##name(kh_##name##_t *h, khkey_t key, int *ret) \
{ \
khint_t x; \
if (h->n_occupied >= h->upper_bound) { \
} else *ret = 0; \
return x; \
} \
- static inline void kh_del_##name(kh_##name##_t *h, khint_t x) \
+ SCOPE void kh_del_##name(kh_##name##_t *h, khint_t x) \
{ \
if (x != h->n_buckets && !__ac_iseither(h->flags, x)) { \
__ac_set_isdel_true(h->flags, x); \
} \
}
+#define KHASH_INIT(name, khkey_t, khval_t, kh_is_map, __hash_func, __hash_equal) \
+ KHASH_INIT2(name, static inline, khkey_t, khval_t, kh_is_map, __hash_func, __hash_equal)
+
/* --- BEGIN OF HASH FUNCTIONS --- */
/*! @function
@abstract Integer hash function
- @param key The integer [uint32_t]
+ @param key The integer [khint32_t]
@return The hash value [khint_t]
*/
-#define kh_int_hash_func(key) (uint32_t)(key)
+#define kh_int_hash_func(key) (khint32_t)(key)
/*! @function
@abstract Integer comparison function
*/
#define kh_int_hash_equal(a, b) ((a) == (b))
/*! @function
@abstract 64-bit integer hash function
- @param key The integer [uint64_t]
+ @param key The integer [khint64_t]
@return The hash value [khint_t]
*/
-#define kh_int64_hash_func(key) (uint32_t)((key)>>33^(key)^(key)<<11)
+#define kh_int64_hash_func(key) (khint32_t)((key)>>33^(key)^(key)<<11)
/*! @function
@abstract 64-bit integer comparison function
*/
@param name Name of the hash table [symbol]
*/
#define KHASH_SET_INIT_INT(name) \
- KHASH_INIT(name, uint32_t, char, 0, kh_int_hash_func, kh_int_hash_equal)
+ KHASH_INIT(name, khint32_t, char, 0, kh_int_hash_func, kh_int_hash_equal)
/*! @function
@abstract Instantiate a hash map containing integer keys
@param khval_t Type of values [type]
*/
#define KHASH_MAP_INIT_INT(name, khval_t) \
- KHASH_INIT(name, uint32_t, khval_t, 1, kh_int_hash_func, kh_int_hash_equal)
+ KHASH_INIT(name, khint32_t, khval_t, 1, kh_int_hash_func, kh_int_hash_equal)
/*! @function
@abstract Instantiate a hash map containing 64-bit integer keys
@param name Name of the hash table [symbol]
*/
#define KHASH_SET_INIT_INT64(name) \
- KHASH_INIT(name, uint64_t, char, 0, kh_int64_hash_func, kh_int64_hash_equal)
+ KHASH_INIT(name, khint64_t, char, 0, kh_int64_hash_func, kh_int64_hash_equal)
/*! @function
@abstract Instantiate a hash map containing 64-bit integer keys
@param khval_t Type of values [type]
*/
#define KHASH_MAP_INIT_INT64(name, khval_t) \
- KHASH_INIT(name, uint64_t, khval_t, 1, kh_int64_hash_func, kh_int64_hash_equal)
+ KHASH_INIT(name, khint64_t, khval_t, 1, kh_int64_hash_func, kh_int64_hash_equal)
typedef const char *kh_cstr_t;
/*! @function
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