Differences

This shows you the differences between two versions of the page.

--- tech:unix:freebsd:uint [2024/05/21 15:33] – created puisor
+++ tech:unix:freebsd:uint [2024/05/22 08:07] (current) – puisor
@@ Line 10: / Line 10: @@
 ===== Symptom =====
-When attempting to compile a C program (probably one you downloaded from the internet), in either ''clang'' or ''gcc'', you encounter an error similar to this one:
+When attempting to compile a C program, in either ''clang'' or ''gcc'', you encounter an error similar to this one:
   myprogram.c:600:2: error: use of undeclared identifier 'uint'; did you mean 'int'?
@@ Line 20: / Line 20: @@
 ===== Root Cause =====
-''uint'' is not a [[https://en.wikipedia.org/wiki/C_data_types|standard C data type]], however it is used by other platforms, such as Linux.
+''uint'' is not a [[https://en.wikipedia.org/wiki/C_data_types|standard C data type]], so it must be declared.
 ===== Solution =====
-To resolve this issue, declare the ''uint'' type before ''main'' in the C source file, for example:
+Include the ''sys/types.h'' header file before ''main'' in the C source file:
-  typedef	__uint32_t	uint;
+  #include <sys/types.h>
 The program should then compile.