97 lines
4.6 KiB
C
97 lines
4.6 KiB
C
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#ifndef COSMOPOLITAN_LIBC_LOG_CHECK_H_
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#define COSMOPOLITAN_LIBC_LOG_CHECK_H_
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#include "libc/dce.h"
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/**
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* @fileoverview Modern assertions, courtesy of Elgoog.
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*/
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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#define CHECK(X, ...) __CHK(eq, ==, true, "true", !!(X), #X, "" __VA_ARGS__)
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#define CHECK_EQ(Y, X, ...) __CHK(eq, ==, Y, #Y, X, #X, "" __VA_ARGS__)
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#define CHECK_NE(Y, X, ...) __CHK(ne, !=, Y, #Y, X, #X, "" __VA_ARGS__)
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#define CHECK_LE(Y, X, ...) __CHK(le, <=, Y, #Y, X, #X, "" __VA_ARGS__)
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#define CHECK_LT(Y, X, ...) __CHK(lt, <, Y, #Y, X, #X, "" __VA_ARGS__)
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#define CHECK_GE(Y, X, ...) __CHK(ge, >=, Y, #Y, X, #X, "" __VA_ARGS__)
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#define CHECK_GT(Y, X, ...) __CHK(gt, >, Y, #Y, X, #X, "" __VA_ARGS__)
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#define CHECK_NOTNULL(X, ...) __CHK(ne, !=, NULL, "NULL", X, #X, "" __VA_ARGS__)
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#define DCHECK(X, ...) __DCHK(eq, ==, true, "true", !!(X), #X, "" __VA_ARGS__)
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#define DCHECK_EQ(Y, X, ...) __DCHK(eq, ==, Y, #X, X, #Y, "" __VA_ARGS__)
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#define DCHECK_NE(Y, X, ...) __DCHK(ne, !=, Y, #X, X, #Y, "" __VA_ARGS__)
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#define DCHECK_LE(Y, X, ...) __DCHK(le, <=, Y, #X, X, #Y, "" __VA_ARGS__)
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#define DCHECK_LT(Y, X, ...) __DCHK(lt, <, Y, #X, X, #Y, "" __VA_ARGS__)
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#define DCHECK_GE(Y, X, ...) __DCHK(ge, >=, Y, #X, X, #Y, "" __VA_ARGS__)
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#define DCHECK_GT(Y, X, ...) __DCHK(gt, >, Y, #X, X, #Y, "" __VA_ARGS__)
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#define DCHECK_NOTNULL(X, ...) \
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__DCHK(ne, !=, NULL, "NULL", X, #X, "" __VA_ARGS__)
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#define CHECK_ALIGNED(BYTES, VAR) \
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do { \
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if (((uintptr_t)VAR & ((BYTES)-1u))) { \
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__check_fail_aligned(BYTES, (uintptr_t)VAR); \
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unreachable; \
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} \
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VAR = (typeof(VAR))__builtin_assume_aligned(VAR, BYTES); \
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} while (0)
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#define DCHECK_ALIGNED(BYTES, VAR) \
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do { \
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if (((uintptr_t)VAR & ((BYTES)-1u))) { \
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__DCHK_ALIGNED(BYTES, (uintptr_t)VAR); \
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unreachable; \
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} \
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VAR = (typeof(VAR))__builtin_assume_aligned(VAR, BYTES); \
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} while (0)
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#define __CHK(SUFFIX, OP, WANT, WANTSTR, GOT, GOTSTR, ...) \
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do { \
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autotype(WANT) Want = (WANT); \
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autotype(GOT) Got = (GOT); \
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if (!(Want OP Got)) { \
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if (!NoDebug()) { \
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__check_fail(#SUFFIX, #OP, (uint64_t)Want, (WANTSTR), (uint64_t)Got, \
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(GOTSTR), __FILE__, __LINE__, __VA_ARGS__); \
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} else { \
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__check_fail_##SUFFIX((uint64_t)Want, (uint64_t)Got); \
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} \
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unreachable; \
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} \
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} while (0)
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#ifdef NDEBUG
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#define __DCHK(SUFFIX, OP, WANT, WANTSTR, GOT, ...) \
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do { \
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autotype(WANT) Want = (WANT); \
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autotype(GOT) Got = (GOT); \
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if (!(Want OP Got)) unreachable; \
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} while (0)
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#else
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#define __DCHK(SUFFIX, OP, WANT, WANTSTR, GOT, GOTSTR, ...) \
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__CHK(SUFFIX, OP, WANT, WANTSTR, GOT, GOTSTR, __VA_ARGS__)
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#endif
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#ifdef NDEBUG
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#define __DCHK_ALIGNED(BYTES, VAR)
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#else
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#define __DCHK_ALIGNED(BYTES, VAR) __check_fail_aligned(BYTES, VAR)
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#endif
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void __check_fail(const char *, const char *, uint64_t, const char *, uint64_t,
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const char *, const char *, int, const char *,
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...) relegated noreturn;
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void __check_fail_eq(uint64_t, uint64_t) relegated noreturn;
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void __check_fail_ne(uint64_t, uint64_t) relegated noreturn;
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void __check_fail_le(uint64_t, uint64_t) relegated noreturn;
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void __check_fail_lt(uint64_t, uint64_t) relegated noreturn;
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void __check_fail_ge(uint64_t, uint64_t) relegated noreturn;
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void __check_fail_gt(uint64_t, uint64_t) relegated noreturn;
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void __check_fail_aligned(unsigned, uint64_t) relegated noreturn;
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_LOG_CHECK_H_ */
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