1 /**********************************************************************
2 * Copyright (c) 2013, 2014 Pieter Wuille *
3 * Distributed under the MIT software license, see the accompanying *
4 * file COPYING or http://www.opensource.org/licenses/mit-license.php.*
5 **********************************************************************/
7 #ifndef _SECP256K1_UTIL_H_
8 #define _SECP256K1_UTIL_H_
10 #if defined HAVE_CONFIG_H
11 #include "libsecp256k1-config.h"
19 void (*fn)(const char *text, void* data);
23 static SECP256K1_INLINE void secp256k1_callback_call(const secp256k1_callback * const cb, const char * const text) {
24 cb->fn(text, (void*)cb->data);
28 #define TEST_FAILURE(msg) do { \
29 fprintf(stderr, "%s\n", msg); \
33 #define TEST_FAILURE(msg) do { \
34 fprintf(stderr, "%s:%d: %s\n", __FILE__, __LINE__, msg); \
39 #ifdef HAVE_BUILTIN_EXPECT
40 #define EXPECT(x,c) __builtin_expect((x),(c))
42 #define EXPECT(x,c) (x)
46 #define CHECK(cond) do { \
47 if (EXPECT(!(cond), 0)) { \
48 TEST_FAILURE("test condition failed"); \
52 #define CHECK(cond) do { \
53 if (EXPECT(!(cond), 0)) { \
54 TEST_FAILURE("test condition failed: " #cond); \
59 /* Like assert(), but when VERIFY is defined, and side-effect safe. */
61 #define VERIFY_CHECK CHECK
62 #define VERIFY_SETUP(stmt) do { stmt; } while(0)
64 #define VERIFY_CHECK(cond) do { (void)(cond); } while(0)
65 #define VERIFY_SETUP(stmt)
68 static SECP256K1_INLINE void *checked_malloc(const secp256k1_callback* cb, size_t size) {
69 void *ret = malloc(size);
71 secp256k1_callback_call(cb, "Out of memory");
76 /* Macro for restrict, when available and not in a VERIFY build. */
77 #if defined(SECP256K1_BUILD) && defined(VERIFY)
78 # define SECP256K1_RESTRICT
80 # if (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L) )
81 # if SECP256K1_GNUC_PREREQ(3,0)
82 # define SECP256K1_RESTRICT __restrict__
83 # elif (defined(_MSC_VER) && _MSC_VER >= 1400)
84 # define SECP256K1_RESTRICT __restrict
86 # define SECP256K1_RESTRICT
89 # define SECP256K1_RESTRICT restrict
94 # define I64FORMAT "I64d"
95 # define I64uFORMAT "I64u"
97 # define I64FORMAT "lld"
98 # define I64uFORMAT "llu"
101 #if defined(HAVE___INT128)
102 # if defined(__GNUC__)
103 # define SECP256K1_GNUC_EXT __extension__
105 # define SECP256K1_GNUC_EXT
107 SECP256K1_GNUC_EXT typedef unsigned __int128 uint128_t;