std::stacktrace_entry::source_line

 

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std::stacktrace_entry

Member functions

stacktrace_entry::stacktrace_entry

stacktrace_entry::operator=

Observers

stacktrace_entry::native_handle

stacktrace_entry::operator bool

Query

stacktrace_entry::description

stacktrace_entry::source_file

stacktrace_entry::source_line

Non-member functions

operator== operator<=>

to_string(std::stacktrace_entry)

operator<<

Helper classes

hash<std::stacktrace_entry>

formatter<std::stacktrace_entry>

 

std::uint_least32_t source_line() const;		(since C++23)

Returns a 1-based line number that lexically relates to the evaluation represented by *this, or 0 on failure other than allocation failure, e.g. when *this is empty.

Either source_file returns the presumed source file name and source_line returns the presumed line number, or source_file returns the actual source file name and source_line returns the actual line number.

Parameters

(none)

Return value

The line number specified above on success, 0 on failure other than allocation failure.

Exceptions

Throws std::bad_alloc if memory for the internal data structures cannot be allocated.

Notes

The presumed line number is what the predefined macro __LINE__ expands to, and can be changed by the #line directive.

This function is not required to be noexcept because getting source line requires allocation on some platforms.

See also

line	return the line number represented by this object (public member function of std::source_location)