--- a/src/dmgrowbuf.h	Thu Dec 08 15:56:36 2022 +0200
+++ b/src/dmgrowbuf.h	Thu Dec 08 15:59:22 2022 +0200
@@ -25,10 +25,10 @@
         len,        // Size requested
         mingrow;    // Minimum amount of bytes the allocation size grows by
 
-    BOOL
-        backwards,  // TRUE if the buffer grows backwards (e.g. "offs" moves backwards)
-        literal,    // TRUE if dmGrowBufPut*() functions stores data "literally" in backwards mode
-        is_const;   // TRUE will cause any reallocs etc. modifications to fail
+    bool
+        backwards,  // true if the buffer grows backwards (e.g. "offs" moves backwards)
+        literal,    // true if dmGrowBufPut*() functions stores data "literally" in backwards mode
+        is_const;   // true will cause any reallocs etc. modifications to fail
 } DMGrowBuf;
 
 
@@ -46,17 +46,17 @@
 DMGrowBuf * dmGrowBufConstCreateFrom(DMGrowBuf *buf, Uint8 *data, const size_t len);
 
 
-BOOL   dmGrowBufGrow(DMGrowBuf *buf, const size_t amount);
-BOOL   dmGrowBufCheckGrow(DMGrowBuf *buf, const size_t nsize);
+bool   dmGrowBufGrow(DMGrowBuf *buf, const size_t amount);
+bool   dmGrowBufCheckGrow(DMGrowBuf *buf, const size_t nsize);
 
-BOOL   dmGrowBufPut(DMGrowBuf *buf, const Uint8 *data, const size_t len);
-BOOL   dmGrowBufPutU8(DMGrowBuf *buf, const Uint8 value);
-BOOL   dmGrowBufPutU16BE(DMGrowBuf *buf, const Uint16 val);
-BOOL   dmGrowBufPutU16LE(DMGrowBuf *buf, const Uint16 val);
-BOOL   dmGrowBufPutU32BE(DMGrowBuf *buf, const Uint32 val);
-BOOL   dmGrowBufPutU32LE(DMGrowBuf *buf, const Uint32 val);
+bool   dmGrowBufPut(DMGrowBuf *buf, const Uint8 *data, const size_t len);
+bool   dmGrowBufPutU8(DMGrowBuf *buf, const Uint8 value);
+bool   dmGrowBufPutU16BE(DMGrowBuf *buf, const Uint16 val);
+bool   dmGrowBufPutU16LE(DMGrowBuf *buf, const Uint16 val);
+bool   dmGrowBufPutU32BE(DMGrowBuf *buf, const Uint32 val);
+bool   dmGrowBufPutU32LE(DMGrowBuf *buf, const Uint32 val);
 
-BOOL   dmGrowBufGetU8(DMGrowBuf *buf, Uint8 *value);
+bool   dmGrowBufGetU8(DMGrowBuf *buf, Uint8 *value);
 
 
 #ifdef __cplusplus