forked from cerc-io/plugeth
e0ceeab0d1
- Use defined constants instead of hard-coding their integer value. - Allocate secp256k1 structs on the C stack instead of converting []byte - Remove dead code
114 lines
2.8 KiB
C
114 lines
2.8 KiB
C
/**********************************************************************
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* Copyright (c) 2013, 2014 Pieter Wuille *
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* Distributed under the MIT software license, see the accompanying *
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* file COPYING or http://www.opensource.org/licenses/mit-license.php.*
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**********************************************************************/
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#ifndef _SECP256K1_UTIL_H_
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#define _SECP256K1_UTIL_H_
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#if defined HAVE_CONFIG_H
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#include "libsecp256k1-config.h"
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#endif
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdio.h>
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typedef struct {
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void (*fn)(const char *text, void* data);
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const void* data;
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} secp256k1_callback;
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static SECP256K1_INLINE void secp256k1_callback_call(const secp256k1_callback * const cb, const char * const text) {
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cb->fn(text, (void*)cb->data);
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}
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#ifdef DETERMINISTIC
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#define TEST_FAILURE(msg) do { \
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fprintf(stderr, "%s\n", msg); \
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abort(); \
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} while(0);
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#else
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#define TEST_FAILURE(msg) do { \
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fprintf(stderr, "%s:%d: %s\n", __FILE__, __LINE__, msg); \
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abort(); \
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} while(0)
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#endif
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#ifdef HAVE_BUILTIN_EXPECT
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#define EXPECT(x,c) __builtin_expect((x),(c))
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#else
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#define EXPECT(x,c) (x)
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#endif
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#ifdef DETERMINISTIC
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#define CHECK(cond) do { \
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if (EXPECT(!(cond), 0)) { \
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TEST_FAILURE("test condition failed"); \
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} \
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} while(0)
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#else
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#define CHECK(cond) do { \
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if (EXPECT(!(cond), 0)) { \
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TEST_FAILURE("test condition failed: " #cond); \
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} \
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} while(0)
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#endif
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/* Like assert(), but when VERIFY is defined, and side-effect safe. */
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#if defined(COVERAGE)
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#define VERIFY_CHECK(check)
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#define VERIFY_SETUP(stmt)
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#elif defined(VERIFY)
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#define VERIFY_CHECK CHECK
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#define VERIFY_SETUP(stmt) do { stmt; } while(0)
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#else
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#define VERIFY_CHECK(cond) do { (void)(cond); } while(0)
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#define VERIFY_SETUP(stmt)
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#endif
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static SECP256K1_INLINE void *checked_malloc(const secp256k1_callback* cb, size_t size) {
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void *ret = malloc(size);
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if (ret == NULL) {
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secp256k1_callback_call(cb, "Out of memory");
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}
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return ret;
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}
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/* Macro for restrict, when available and not in a VERIFY build. */
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#if defined(SECP256K1_BUILD) && defined(VERIFY)
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# define SECP256K1_RESTRICT
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#else
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# if (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L) )
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# if SECP256K1_GNUC_PREREQ(3,0)
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# define SECP256K1_RESTRICT __restrict__
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# elif (defined(_MSC_VER) && _MSC_VER >= 1400)
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# define SECP256K1_RESTRICT __restrict
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# else
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# define SECP256K1_RESTRICT
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# endif
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# else
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# define SECP256K1_RESTRICT restrict
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# endif
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#endif
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#if defined(_WIN32)
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# define I64FORMAT "I64d"
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# define I64uFORMAT "I64u"
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#else
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# define I64FORMAT "lld"
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# define I64uFORMAT "llu"
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#endif
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#if defined(HAVE___INT128)
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# if defined(__GNUC__)
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# define SECP256K1_GNUC_EXT __extension__
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# else
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# define SECP256K1_GNUC_EXT
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# endif
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SECP256K1_GNUC_EXT typedef unsigned __int128 uint128_t;
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#endif
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#endif
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