Warn Struct Reference

Detailed Description

When constructed, logs a message (at "warn" severity); the destructor is guaranteed to be trivial.

This is useful for declaring an instance of this class as a function-static global, so that a warning is logged the first time the program encounters some code, but does not repeat the warning on subsequent encounters within the same process.

For example:

double* SanityCheck(double* data) {
  if (!data) {
    static const logging::Warn log_once("Bad data!");
    return alternative_data();
  }
  return data;
}

#include <drake/common/text_logging.h>

Public Member Functions
template<typename... Args>
	Warn (fmt::format_string< Args... > pattern, Args &&... args)

Constructor & Destructor Documentation

Warn()

template<typename... Args>

Warn	(	fmt::format_string< Args... >	pattern,
		Args &&...	args )

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The documentation for this struct was generated from the following file:

• drake/common/text_logging.h