silence compiler warnings for gcc 4.7 and before - #53
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The option -Wliteral-suffix was introduced in gcc 4.8, and "#pragma GCC diagnostic push" was added in 4.6. Using the header with an older gcc would lead to warnings like: string_view.hpp:438: warning: expected [error|warning|ignored] after '#pragma GCC diagnostic' string_view.hpp:439: warning: unknown option after '#pragma GCC diagnostic' kind string_view.hpp:1681: warning: expected [error|warning|ignored] after '#pragma GCC diagnostic'
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The option -Wliteral-suffix was introduced in gcc 4.8, and
#pragma GCC diagnostic pushwas added in 4.6. Using the header with an older gcc would lead to warnings like: