X-Git-Url: https://plomlompom.com/repos/?a=blobdiff_plain;f=src%2Fmisc.h;h=782a6fab0512a23a775515a6b4080f55d3b24669;hb=d9d4d6c4cecc44d25bf28861f663f95fe5d8e9a8;hp=c7b88557285caa9e636ede24406ab262989a4403;hpb=0e6c855b67e0cd3def7196396f3d1f45ff85b692;p=plomrogue

diff --git a/src/misc.h b/src/misc.h
index c7b8855..782a6fa 100644
--- a/src/misc.h
+++ b/src/misc.h
@@ -9,6 +9,7 @@
 
 
 
+#include <stdlib.h>    /* for size_t */
 #include <stdint.h>    /* for uint16_t */
 #include "yx_uint16.h" /* for yx_uint16 coordinates */
 struct World;
@@ -16,6 +17,26 @@ struct Map;
 
 
 
+/* Returns message: "Trouble in ".parent." with ".child."." (try_*() helper) */
+extern char * trouble_msg(struct World * w, char * parent, char * child);
+
+/* Wrappers to malloc(), calloc() from function called "f" calling exit_err()
+ * with trouble_msg() error message if necessary.
+ */
+extern void * try_malloc(size_t size, struct World * w, char * f);
+extern void * try_calloc(size_t nmemb, size_t size,
+                         struct World * w, char * f);
+
+
+
+/* Check if tempfile "path" exists, and if so, exit with explanation that. */
+extern void check_tempfile(char * path, struct World * f);
+
+/* If one and only one of files at "p1", "p2" exists, fail with explanation. */
+extern void check_files_xor(char * p1, char * p2, struct World * w);
+
+
+
 /* Update game log by appending "text", or by appending a "." if "text" is the
  * same as the last one passed.
  */
@@ -23,11 +44,11 @@ extern void update_log(struct World * world, char * text);
 
 
 
-/* Return the offset necessary to center "map" on position "pos" in a frame of
- * "framesize.
+/* Return the offset necessary to center a map of "mapsize" on position "pos" in
+ * a frame of "framesize.
  */
-extern uint16_t center_offset(uint16_t pos, uint16_t mapsize,
-                              uint16_t framesize);
+extern uint16_t center_offset(uint16_t pos,
+                              uint16_t mapsize, uint16_t framesize);