*/
#ifndef __DECAF_COMMON_H__
-#define __DECAF_COMMON_H__ 1
+# define __DECAF_COMMON_H__ 1
-#include <openssl/e_os2.h>
+# include <openssl/e_os2.h>
#ifdef __cplusplus
extern "C" {
#endif
-/* Internal word types.
- *
- * Somewhat tricky. This could be decided separately per platform. However,
- * the structs do need to be all the same size and alignment on a given
- * platform to support dynamic linking, since even if you header was built
- * with eg arch_neon, you might end up linking a library built with arch_arm32.
+/*
+ * Internal word types. Somewhat tricky. This could be decided separately per
+ * platform. However, the structs do need to be all the same size and
+ * alignment on a given platform to support dynamic linking, since even if you
+ * header was built with eg arch_neon, you might end up linking a library built
+ * with arch_arm32.
*/
-#ifndef DECAF_WORD_BITS
- #if (defined(__ILP64__) || defined(__amd64__) || defined(__x86_64__) || (((__UINT_FAST32_MAX__)>>30)>>30))
- #define DECAF_WORD_BITS 64 /**< The number of bits in a word */
- #else
- #define DECAF_WORD_BITS 32 /**< The number of bits in a word */
- #endif
-#endif
-
-#if DECAF_WORD_BITS == 64
-typedef uint64_t decaf_word_t; /**< Word size for internal computations */
-typedef int64_t decaf_sword_t; /**< Signed word size for internal computations */
-typedef uint64_t decaf_bool_t; /**< "Boolean" type, will be set to all-zero or all-one (i.e. -1u) */
-typedef __uint128_t decaf_dword_t; /**< Double-word size for internal computations */
-typedef __int128_t decaf_dsword_t; /**< Signed double-word size for internal computations */
-#elif DECAF_WORD_BITS == 32 /**< The number of bits in a word */
-typedef uint32_t decaf_word_t; /**< Word size for internal computations */
-typedef int32_t decaf_sword_t; /**< Signed word size for internal computations */
-typedef uint32_t decaf_bool_t; /**< "Boolean" type, will be set to all-zero or all-one (i.e. -1u) */
-typedef uint64_t decaf_dword_t; /**< Double-word size for internal computations */
-typedef int64_t decaf_dsword_t; /**< Signed double-word size for internal computations */
-#else
-#error "Only supporting DECAF_WORD_BITS = 32 or 64 for now"
-#endif
-
-/** DECAF_TRUE = -1 so that DECAF_TRUE & x = x */
-static const decaf_bool_t DECAF_TRUE = -(decaf_bool_t)1;
+# ifndef DECAF_WORD_BITS
+# if (defined(__ILP64__) || defined(__amd64__) || defined(__x86_64__) \
+ || (((__UINT_FAST32_MAX__)>>30)>>30))
+# define DECAF_WORD_BITS 64 /* The number of bits in a word */
+# else
+# define DECAF_WORD_BITS 32 /* The number of bits in a word */
+# endif
+# endif
+
+# if DECAF_WORD_BITS == 64
+/* Word size for internal computations */
+typedef uint64_t decaf_word_t;
+/* Signed word size for internal computations */
+typedef int64_t decaf_sword_t;
+/* "Boolean" type, will be set to all-zero or all-one (i.e. -1u) */
+typedef uint64_t decaf_bool_t;
+/* Double-word size for internal computations */
+typedef __uint128_t decaf_dword_t;
+/* Signed double-word size for internal computations */
+typedef __int128_t decaf_dsword_t;
+# elif DECAF_WORD_BITS == 32
+/* Word size for internal computations */
+typedef uint32_t decaf_word_t;
+/* Signed word size for internal computations */
+typedef int32_t decaf_sword_t;
+/* "Boolean" type, will be set to all-zero or all-one (i.e. -1u) */
+typedef uint32_t decaf_bool_t;
+/* Double-word size for internal computations */
+typedef uint64_t decaf_dword_t;
+/* Signed double-word size for internal computations */
+typedef int64_t decaf_dsword_t;
+# else
+# error "Only supporting DECAF_WORD_BITS = 32 or 64 for now"
+# endif
-/** DECAF_FALSE = 0 so that DECAF_FALSE & x = 0 */
+/* DECAF_TRUE = -1 so that DECAF_TRUE & x = x */
+static const decaf_bool_t DECAF_TRUE = -(decaf_bool_t) 1;
+
+/* DECAF_FALSE = 0 so that DECAF_FALSE & x = 0 */
static const decaf_bool_t DECAF_FALSE = 0;
-/** Another boolean type used to indicate success or failure. */
+/* Another boolean type used to indicate success or failure. */
typedef enum {
DECAF_SUCCESS = -1, /**< The operation succeeded. */
DECAF_FAILURE = 0 /**< The operation failed. */
} decaf_error_t;
-
-/** Return success if x is true */
-static ossl_inline decaf_error_t
-decaf_succeed_if(decaf_bool_t x) {
- return (decaf_error_t)x;
+/* Return success if x is true */
+static ossl_inline decaf_error_t decaf_succeed_if(decaf_bool_t x)
+{
+ return (decaf_error_t) x;
}
-/** Return DECAF_TRUE iff x == DECAF_SUCCESS */
-static ossl_inline decaf_bool_t
-decaf_successful(decaf_error_t e) {
- decaf_dword_t w = ((decaf_word_t)e) ^ ((decaf_word_t)DECAF_SUCCESS);
- return (w-1)>>DECAF_WORD_BITS;
-}
-
#ifdef __cplusplus
} /* extern "C" */
#endif
-
-#endif /* __DECAF_COMMON_H__ */
+
+#endif /* __DECAF_COMMON_H__ */