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syntax error caused by unconditional __has_builtin usage #473

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syntax error caused by unconditional __has_builtin usage#473

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@firewave
firewave
opened on Aug 4, 2025

Encountered while working on #438.

#if __has_builtin(__builtin_bit_cast)
#endif
a.cpp:1: syntax error: failed to evaluate #if condition, undefined function-like macro invocation: __has_builtin( ... )

See https://gcc.gnu.org/onlinedocs/cpp/_005f_005fhas_005fbuiltin.html.

Activity

  1. firewave
    changed the title [-]syntax error caused by unconditional `__has_builtin`[/-] [+]syntax error caused by unconditional `__has_builtin` usage[/+] on Aug 4, 2025
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