Verify that parsing the specified fmt succeeds without throwing.

Synopsis

Declared in <bslfmt_formattertestutil.h>

template<class t_TYPE>
consteval
static
bool
testParseFormat(
    bsl::string* message,
    bool alsoTestOracle,
    std::format_string<t_TYPE, int, int> fmt);

Description

Verify that the specified fmt has a valid structure and, if so, parse it using a bslfmt::formatter specialization for the (template parameter) t_TYPE. If the specified alsoTestOracle is true, also parse the fmt using a standard library implementation. Return true if the fmt is valid and the exception is NOT thrown during the parsing, and return false otherwise. Note that fmt is required to be a compile time constant expression.

Return Value

true if parsing succeeds without throwing, else false.

Parameters

Name

Description

message

Output parameter for an error description on failure.

alsoTestOracle

If true, also parse with the standard library.

fmt

Compile‐time format string to parse.

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