================
@@ -96,6 +96,11 @@ void call_snprintf(double d) {
__builtin_snprintf(buf, 1, "%.1000g", d); // expected-warning {{'snprintf'
will always be truncated; specified size is 1, but format string expands to at
least 2}}
__builtin_snprintf(buf, 5, "%.1000g", d);
__builtin_snprintf(buf, 5, "%.1000G", d);
+ char node_name[6];
+ __builtin_snprintf(node_name, sizeof(node_name), "%pOFn", ptr);
+ __builtin_snprintf(node_name, sizeof(node_name), "12345%pOFn", ptr);
+ __builtin_snprintf(node_name, sizeof(node_name), "123456%pOFn", ptr); //
expected-warning {{'snprintf' will always be truncated; specified size is 6,
but format string expands to at least 7}}
----------------
hazohelet wrote:
GCC doesn't warn on this ([live demo](https://godbolt.org/z/bEbYx5Gar)). It's
probably because GCC even ignores the terminating null char, but I think it
makes sense to consider the null char and add 1 (Probably it doesn't matter
much, though).
https://github.com/llvm/llvm-project/pull/65969
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