Commit3bfc9c6

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fix compilation on old msvc versions

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Original file line number	Diff line number	Diff line change
`@@ -5,6 +5,17 @@`
`5`	`5`
`6`	`6`	`#if ((defined(_MSVC_LANG) && _MSVC_LANG >= 201703L) \|\| __cplusplus >= 201703L)`
`7`	`7`	`#defineRAPIDFUZZ_DEDUCTION_GUIDES`
	`8`	`+#endif`
	`9`	`+`
	`10`	`+/* older versions of msvc have bugs in their if constexpr support`
	`11`	`+ * see https://github.com/rapidfuzz/rapidfuzz-cpp/issues/122`
	`12`	`+ * since we don't know the exact version this was fixed in, use the earliest we could test`
	`13`	`+*/`
	`14`	`+#if defined(_MSC_VER) && _MSC_VER < 1920`
	`15`	`+#defineRAPIDFUZZ_IF_CONSTEXPR_AVAILABLE0`
	`16`	`+#defineRAPIDFUZZ_IF_CONSTEXPRif`
	`17`	`+#elif ((defined(_MSVC_LANG) && _MSVC_LANG >= 201703L) \|\| __cplusplus >= 201703L)`
	`18`	`+#defineRAPIDFUZZ_DEDUCTION_GUIDES`
`8`	`19`	`#defineRAPIDFUZZ_IF_CONSTEXPR_AVAILABLE1`
`9`	`20`	`#defineRAPIDFUZZ_IF_CONSTEXPRifconstexpr`
`10`	`21`	`#else`

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