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< secp256k1_context* secp256k1_context_create(unsigned int flags) {
< size_t const prealloc_size = secp256k1_context_preallocated_size(flags);
< secp256k1_context* ctx = (secp256k1_context*)checked_malloc(&default_error_callback, prealloc_size);
< if (EXPECT(secp256k1_context_preallocated_create(ctx, flags) == NULL, 0)) {
< free(ctx);
< return NULL;
< }
<
< return ctx;
< }
<
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< secp256k1_context* secp256k1_context_clone(const secp256k1_context* ctx) {
< secp256k1_context* ret;
< size_t prealloc_size;
<
< VERIFY_CHECK(ctx != NULL);
< prealloc_size = secp256k1_context_preallocated_clone_size(ctx);
< ret = (secp256k1_context*)checked_malloc(&ctx->error_callback, prealloc_size);
< ret = secp256k1_context_preallocated_clone(ctx, ret);
< return ret;
< }
<
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< void secp256k1_context_destroy(secp256k1_context* ctx) {
< if (ctx != NULL) {
< secp256k1_context_preallocated_destroy(ctx);
< free(ctx);
< }
< }
<
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< }
<
< secp256k1_scratch_space* secp256k1_scratch_space_create(const secp256k1_context* ctx, size_t max_size) {
< VERIFY_CHECK(ctx != NULL);
< return secp256k1_scratch_create(&ctx->error_callback, max_size);
< }
<
< void secp256k1_scratch_space_destroy(const secp256k1_context *ctx, secp256k1_scratch_space* scratch) {
< VERIFY_CHECK(ctx != NULL);
< secp256k1_scratch_destroy(&ctx->error_callback, scratch);