Function GetLayerLogOutput

layers/layer_options.cpp:595–610

If log_filename is NULL or stdout, return stdout, otherwise try to open log_filename as a filename. If successful, return file handle, otherwise stdout

// If log_filename is NULL or stdout, return stdout, otherwise try to open log_filename
// as a filename. If successful, return file handle, otherwise stdout
FILE* GetLayerLogOutput(const char* log_filename, std::vector<std::string>& setting_warnings) {
    FILE* log_output = NULL;
    if (!log_filename || !strcmp("stdout", log_filename)) {
        log_output = stdout;
    } else {
        log_output = fopen(log_filename, "w");
        if (log_output == NULL) {
            if (log_filename) {
                setting_warnings.emplace_back("log_filename (" + std::string(log_filename) +
                                              ") could not be opened, falling back to stdout instead.");
            }
            log_output = stdout;
        }
    }
    return log_output;
}

// Definitions for Debug Actions
enum VkLayerDbgActionBits {