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BAN: Add requires expression for BAN::Formatter 

This allows seeing syntax errors before compilation :)
This commit is contained in:
Bananymous 2024-11-26 00:55:58 +02:00
parent 5376236ab6
commit 7316eb87b8
1 changed files with 5 additions and 8 deletions
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13
BAN/include/BAN/Formatter.h
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@ -10,14 +10,11 @@ namespace BAN::Formatter
struct ValueFormat; struct ValueFormat;
template<typename F>
inline void print(F putc, const char* format);
template<typename F, typename Arg, typename... Args>
inline void print(F putc, const char* format, Arg&& arg, Args&&... args);
template<typename F, typename... Args> template<typename F, typename... Args>
inline void println(F putc, const char* format, Args&&... args); concept PrintableArguments = requires(F putc, Args&&... args, const ValueFormat& format)
{
(print_argument(putc, BAN::forward<Args>(args), format), ...);
};
template<typename F, typename T> template<typename F, typename T>
inline void print_argument(F putc, T value, const ValueFormat& format); inline void print_argument(F putc, T value, const ValueFormat& format);
@ -53,7 +50,7 @@ namespace BAN::Formatter
} }
} }
template<typename F, typename Arg, typename... Args> template<typename F, typename Arg, typename... Args> requires PrintableArguments<F, Arg, Args...>
inline void print(F putc, const char* format, Arg&& arg, Args&&... args) inline void print(F putc, const char* format, Arg&& arg, Args&&... args)
{ {
while (*format && *format != '{') while (*format && *format != '{')