62 lines
3.1 KiB
C
62 lines
3.1 KiB
C
#ifndef ZN_ERRORS_H
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#define ZN_ERRORS_H
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#include "log.h"
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// Tell the compiler to favour a certain branch of a condition.
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// Until C++20 can be used with the [[likely]] and [[unlikely]] attributes.
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#if defined(__GNUC__)
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#define ZN_LIKELY(x) __builtin_expect(!!(x), 1)
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#define ZN_UNLIKELY(x) __builtin_expect(!!(x), 0)
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#else
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#define ZN_LIKELY(x) x
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#define ZN_UNLIKELY(x) x
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#endif
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// Abnormally terminate the program
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#ifdef _MSC_VER
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#define ZN_GENERATE_TRAP() __debugbreak()
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#else
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#define ZN_GENERATE_TRAP() __builtin_trap()
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#endif
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// The following macros print a message and crash the program.
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#define ZN_CRASH_MSG(msg) \
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zylann::print_error("FATAL: Method/function failed.", msg, __FUNCTION__, __FILE__, __LINE__); \
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zylann::flush_stdout(); \
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ZN_GENERATE_TRAP()
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#define ZN_CRASH() ZN_CRASH_MSG("")
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// The following macros check a condition. If it fails, they print a message and crash the program.
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#define ZN_ASSERT_MSG(cond, msg) \
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if (ZN_UNLIKELY(!(cond))) { \
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zylann::print_error( \
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"FATAL: Assertion failed: \"" #cond "\" is false.", msg, __FUNCTION__, __FILE__, __LINE__); \
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zylann::flush_stdout(); \
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ZN_GENERATE_TRAP(); \
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} else \
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((void)0)
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#define ZN_ASSERT(cond) ZN_ASSERT_MSG(cond, "")
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// The following macros check a condition. If it fails, they print a message, then return or continue.
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#define ZN_INTERNAL_ASSERT_ACT(cond, act, msg) \
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if (ZN_UNLIKELY(!(cond))) { \
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zylann::print_error("Assertion failed: \"" #cond "\" is false.", msg, __FUNCTION__, __FILE__, __LINE__); \
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act; \
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} else \
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((void)0)
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#define ZN_ASSERT_RETURN(cond) ZN_INTERNAL_ASSERT_ACT(cond, return, "")
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#define ZN_ASSERT_RETURN_MSG(cond, msg) ZN_INTERNAL_ASSERT_ACT(cond, return, msg)
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#define ZN_ASSERT_RETURN_V(cond, retval) ZN_INTERNAL_ASSERT_ACT(cond, return retval, "")
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#define ZN_ASSERT_RETURN_V_MSG(cond, retval, msg) ZN_INTERNAL_ASSERT_ACT(cond, return retval, msg)
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#define ZN_ASSERT_CONTINUE(cond) ZN_INTERNAL_ASSERT_ACT(cond, continue, "")
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#define ZN_ASSERT_CONTINUE_MSG(cond, msg) ZN_INTERNAL_ASSERT_ACT(cond, continue, msg)
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#endif // ZN_ERRORS_H
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