First Commit

1 files changed, 44 insertions, 0 deletions

diff --git a/log.c b/log.c
new file mode 100644
index 0000000..f3fa7bb
--- /dev/null
+++ b/log.c
@@ -0,0 +1,44 @@
+/*
+ * Created by yuuta on 1/1/22.
+ */
+
+#include "log.h"
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <assert.h>
+
+void g_log(enum log_level level,
+                  const char *file,
+                  int line,
+                  const char *format,
+                  ...) {
+    FILE *stream = level <= log_warn ? stderr : stdout;
+    switch (level) {
+        case log_fetal:
+            fprintf(stream, "F");
+            break;
+        case log_error:
+            fprintf(stream, "E");
+            break;
+        case log_warn:
+            fprintf(stream, "W");
+            break;
+        case log_info:
+            fprintf(stream, "I");
+            break;
+        case log_debug:
+            fprintf(stream, "D");
+            break;
+        default:
+            fprintf(stderr, "Unknown log level: %d.\n", level);
+            assert(0);
+    }
+    fprintf(stream, "[%s:%d]: ",
+            file, line);
+    va_list list;
+    va_start(list, format);
+    vfprintf(stream, format, list);
+    va_end(list);
+    fprintf(stream, "\n");
+}