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--- gdcc [2017/07/09 13:43] – korshun
+++ gdcc [2017/07/14 16:18] (current) – korshun
@@ Line 1: / Line 1: @@
+{{tag>acs_compilers}}
 ====== GDCC ======
 GDCC is an alternative ACS compiler, and also a standards-compliant compiler of the [[wp>C programming language]] to ACS VM bytecode.
-The ACS compiler is called **GDCC-ACC**.
+The ACS compiler part of GDCC is called **GDCC-ACC**. The rest is the C compiler.
   * **ZDoom forums:** https://forum.zdoom.org/viewtopic.php?f=19&t=32078
@@ Line 9: / Line 10: @@
 ===== Known bugs =====
-==== Missing "return" statement generates incorrect code ====
+==== Missing "return" statement executes random other function's code ====
+<note warning>This bug is extremely hard to detect.</note>
 <code>
-function int f()
+function int f(void)
 {
     DoSomething();
@@ Line 25: / Line 28: @@
 <code>
-function void f()
+function void f(void)
 {
     int x = g(1, 2, 3);
@@ Line 31: / Line 34: @@
 }
-function void g()
+function void g(void)
 {
     // This function does NOT return a value
@@ Line 39: / Line 42: @@
 If a function is used before it's declared, GDCC allows ANY call to the function, unlike [[ACC]] and [[BCC]].
+==== Compiler errors result in 0 bytes compiled ACS ====
+Some fatal compiler errors do not result in an error message, but in a compiled ACS file that is 0 bytes long.
+==== Incomprehensible compiler errors ====
+''Bad gen Retn'' means that the name of the function is already used elsewhere.

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