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error: introduce THROW_CHECK4, the long-awaited sequel to THROW_CHECK3

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Sometimes we need to check constraints on 4 variables at once.

It would be nice if variadic macros in C++ were also polymorphic.

Signed-off-by: Zygo Blaxell <bees@furryterror.org>
This commit is contained in:
Zygo Blaxell 2021-10-03 02:52:54 -04:00
parent 2f14a5a9c7
commit 2e36dd2d58
1 changed files with 7 additions and 0 deletions
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7
include/crucible/error.h
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@ -126,6 +126,13 @@ namespace crucible {
} \ } \
} while(0) } while(0)
#define THROW_CHECK4(type, value1, value2, value3, value4, expr) do { \
if (!(expr)) { \
THROW_ERROR(type, #value1 << " = " << (value1) << ", " #value2 << " = " << (value2) << ", " #value3 << " = " << (value3) << ", " #value4 << " = " << (value4) \
<< " failed constraint check (" << #expr << ")"); \
} \
} while(0)
#define THROW_CHECK_BIN_OP(type, value1, op, value2) do { \ #define THROW_CHECK_BIN_OP(type, value1, op, value2) do { \
if (!((value1) op (value2))) { \ if (!((value1) op (value2))) { \
THROW_ERROR(type, "failed constraint check " << #value1 << " (" << (value1) << ") " << #op << " " << #value2 << " (" << (value2) << ")"); \ THROW_ERROR(type, "failed constraint check " << #value1 << " (" << (value1) << ") " << #op << " " << #value2 << " (" << (value2) << ")"); \