logging

1 files changed, 2 insertions, 0 deletions

diff --git a/log.h b/log.h
index b739837..ee638de 100644
--- a/log.h
+++ b/log.h
@@ -12,5 +12,7 @@ void log_init(const char *out);
 void log_message(int severity, const char *fmt, va_list args);
 void log_error(PRINTF_FORMAT_STRING const char *fmt, ...) ATTRIBUTE_PRINTF(1, 2);
 void log_warning(PRINTF_FORMAT_STRING const char *fmt, ...) ATTRIBUTE_PRINTF(1, 2);
+/// Like `perror`, but outputs to log and allows format string.
+void log_perror(PRINTF_FORMAT_STRING const char *fmt, ...) ATTRIBUTE_PRINTF(1, 2);
 
 #endif