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Assert that wchar_t's size matches one of the unicode character types

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This is assumed in various places, so best checked explicitly.

Change-Id: I475dcf5cbb60c0272dec560acd2893cff73872ce
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
This commit is contained in:
Edward Welbourne 2021-01-06 12:28:27 +01:00
parent 4724d017ef
commit 7fea8a079f
1 changed files with 2 additions and 0 deletions
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2
src/corelib/global/qglobal.cpp
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@ -139,6 +139,8 @@ static_assert(std::numeric_limits<int>::radix == 2,
"Qt assumes binary integers");
static_assert((std::numeric_limits<int>::max() + std::numeric_limits<int>::lowest()) == -1,
"Qt assumes two's complement integers");
static_assert(sizeof(wchar_t) == sizeof(char32_t) || sizeof(wchar_t) == sizeof(char16_t),
"Qt assumes wchar_t is compatible with either char32_t or char16_t");
// While we'd like to check for __STDC_IEC_559__, as per ISO/IEC 9899:2011
// Annex F (C11, normative for C++11), there are a few corner cases regarding