Update os.h

fixed issue #246

Update os.h
fixed issue #246
28ebdad3 · Gabi Melman · GitHub · 1ac68e39 · 28ebdad3
Commit 28ebdad3 authored Jul 21, 2016 by Gabi Melman Committed by GitHub Jul 21, 2016
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os.h include/spdlog/details/os.h +1 -1

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--- a/include/spdlog/details/os.h
+++ b/include/spdlog/details/os.h
@@ -256,7 +256,7 @@ inline std::string filename_to_str(const filename_t& filename)
 inline std::string errno_str(int err_num)
 {
    char buf[256];
-    constexpr auto buf_size = sizeof(buf);
+    SPDLOG_CONSTEXPR auto buf_size = sizeof(buf);
 #ifdef _WIN32
    if(strerror_s(buf, buf_size, err_num) == 0)