Fix #11538: Fix syntax error on C++23 'if consteval' / 'if !consteval'#8733
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autoantwort wants to merge 1 commit into
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Fix #11538: Fix syntax error on C++23 'if consteval' / 'if !consteval'#8733autoantwort wants to merge 1 commit into
autoantwort wants to merge 1 commit into
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The tokenizer only recognized 'if constexpr (...)' and treated any
other 'if <name>' without parentheses as a syntax error, so C++23's
'if consteval { ... }' and 'if !consteval { ... }' were rejected.
Rewrite them to 'if ( __cppcheck_consteval__ ) { ... }' and
'if ( ! __cppcheck_consteval__ ) { ... }' respectively, using a
synthetic unresolved symbol rather than a boolean literal so that
valueflow can't treat the condition as always true/false.
danmar
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Jul 24, 2026
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Your suggested transformation seems valid to me. Feel free to finish this approach..
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The tokenizer only recognized
if constexpr (...)and treated any otherif <name>without parentheses as a syntax error, so C++23'sif consteval { ... }andif !consteval { ... }were rejected.Rewrite them to
if ( __cppcheck_consteval__ ) { ... }andif ( ! __cppcheck_consteval__ ) { ... }respectively, using a synthetic unresolved symbol rather than a boolean literal so that valueflow can't treat the condition as always true/false.