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-rw-r--r--FAQ13
1 files changed, 13 insertions, 0 deletions
diff --git a/FAQ b/FAQ
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@@ -129,6 +129,8 @@ please let me know.
I get segmentation faults when I run the program.
3.15. The sys/sem.h file lacks the definition of `union semun'.
3.16. Why has <netinet/ip_fw.h> disappeared?
+3.17. I get floods of warnings when I use -Wconversion and include
+ <string.h> or <math.h>.
4. Miscellaneous
@@ -1328,6 +1330,17 @@ taken care in user programs using the firewall structures and therefore
those programs (ipfw is AFAIK the only one) should deal with this problem
themselves.
+
+3.17. I get floods of warnings when I use -Wconversion and include
+ <string.h> or <math.h>.
+
+{ZW} <string.h> and <math.h> intentionally use prototypes to override
+argument promotion. -Wconversion warns about all these. You can safely
+ignore the warnings.
+
+-Wconversion isn't really intended for production use, only for shakedown
+compiles after converting an old program to standard C.
+
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