// Copyright © Tavian Barnes <tavianator@tavianator.com> // SPDX-License-Identifier: 0BSD #include "../src/alloc.h" #include "../src/diag.h" #include <stdlib.h> int main(void) { // Check sizeof_flex() struct flexible { alignas(64) int foo[8]; int bar[]; }; bfs_verify(sizeof_flex(struct flexible, bar, 0) >= sizeof(struct flexible)); bfs_verify(sizeof_flex(struct flexible, bar, 16) % alignof(struct flexible) == 0); bfs_verify(sizeof_flex(struct flexible, bar, SIZE_MAX / sizeof(int) + 1) == align_floor(alignof(struct flexible), SIZE_MAX)); // Corner case: sizeof(type) > align_ceil(alignof(type), offsetof(type, member)) // Doesn't happen in typical ABIs bfs_verify(flex_size(8, 16, 4, 4, 1) == 16); // varena tests struct varena varena; VARENA_INIT(&varena, struct flexible, bar); for (size_t i = 0; i < 256; ++i) { bfs_verify(varena_alloc(&varena, i)); struct arena *arena = &varena.arenas[varena.narenas - 1]; bfs_verify(arena->size >= sizeof_flex(struct flexible, bar, i)); } varena_destroy(&varena); return EXIT_SUCCESS; }