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Add some compile time checking for abuse of error.

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ADAM David Alan Martin
2023-12-27 16:19:25 -05:00
parent fbc731dec9
commit 9424fbd193
1 changed files with 5 additions and 2 deletions
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7
error.h
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@ -41,7 +41,8 @@ namespace Alepha::Hydrogen ::detail:: error_m
* local named variable is going to cause the lock to be released. While this is not
* a fatal problem, it can result in torn error lines, once again.
*/
std::ostream &error( const std::lock_guard< SecretMutex > & );
template< typename ... Args >
std::ostream &error( Args..., const std::lock_guard< SecretMutex > & );
// Not threadsafe. Set in or before main, before starting any threads.
void setErrorStream( std::ostream &os );
@ -52,8 +53,10 @@ namespace Alepha::Hydrogen ::detail:: error_m
// The default is `std::cerr`, but any `std::ostream` will do.
inline std::ostream *errorStream= &std::cerr;
template< typename ... Args >
requires( sizeof...( Args ) == 0 )
inline std::ostream &
exports::error( const std::lock_guard< SecretMutex > & = std::lock_guard{ access } )
exports::error( Args..., const std::lock_guard< SecretMutex > & = std::lock_guard{ access } )
{
return *errorStream;
}