E2324 Numeric constant too large (C++)

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String and character escape sequences larger than hexadecimal or octal 77 can't be generated.

Two-byte character constants can be specified by using a second backslash. For example,

\\

represents a two-byte constant.

A numeric literal following an escape sequence should be broken up like this:

printf("\x0A" "12345");

This prints a carriage return followed by 12345.