The D Programming Language's Unofficial Docs
beta
The D Programming Language's Unofficial Docs
beta
location for error messages
format string
arguments to match with format string
if a "v" function (format check only)
true if errors occurred References: C99 7.19.6.2 http://www.cplusplus.com/reference/cstdio/scanf/
Check that arguments to a scanf format string are compatible with that string. Issue errors for incompatibilities.
Follows the C99 specification for scanf.
Takes a generous, rather than strict, view of compatiblity. For example, an unsigned value can be formatted with a signed specifier.
Diagnosed incompatibilities are:
1. incompatible sizes which will cause argument misalignment 2. deferencing arguments that are not pointers 3. insufficient number of arguments 4. struct arguments 5. array and slice arguments 6. non-standard formats 7. undefined behavior per C99
Per the C Standard, extra arguments are ignored.
No attempt is made to fix the arguments or the format string.