variable logstream

2 files changed, 12 insertions, 1 deletions

diff --git a/_.c b/_.c
index bdf651b..c7969f3 100644
--- a/_.c
+++ b/_.c
@@ -8,6 +8,7 @@
 static void **_alloced = nullptr;
 static size_t _alloced_size = 0;
 static size_t _alloced_capacity = 0;
+FILE *_cminus_logstream = nullptr;
 
 void wdeinit(void) {
 	if (_alloced != nullptr) {
@@ -71,6 +72,11 @@ void *_realloc(void *ptr, size_t size) {
 	__builtin_unreachable();
 }
 
+void plogstream(FILE *fp) {
+	assert(fp != nullptr);
+	_cminus_logstream = fp;
+}
+
 // mathematical vectors
 
 vec2 v2(f32 x, f32 y) {
diff --git a/_.h b/_.h
index 014fb36..8804d97 100644
--- a/_.h
+++ b/_.h
@@ -70,7 +70,12 @@ void *_realloc(void *ptr, size_t size);
 #define with(I, T) auto I = (T); if (I)
 
 // logging
-#define pgeneric(PREFIX, ...) fprintf(stderr, \
+extern FILE *_cminus_logstream;
+void plogstream(FILE *fp);
+#define pgeneric(PREFIX, ...) ({ if (_cminus_logstream == nullptr) \
+                                     _cminus_logstream = stderr; \
+                              }), \
+                              fprintf(stderr, \
                                       "\x1b[" PREFIX " %s:%s:%d\x1b[0m \t", \
                                       __FILE_NAME__, __FUNCTION__, __LINE__), \
                               fprintf(stderr, __VA_ARGS__), fputc('\n', stderr)