[libc-commits] [libc] Add bit width length modifier to printf (PR #82461)

[Michael Jones via libc-commits]

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@@ -169,6 +170,52 @@ TEST(LlvmLibcSPrintfTest, IntConv) {
   EXPECT_EQ(written, 20);
   ASSERT_STREQ(buff, "-9223372036854775808"); // ll min
 
+  written = LIBC_NAMESPACE::sprintf(buff, "%w3d", 5807);
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michaelrj-google wrote:

you also need tests that check the behavior of incorrect bit-widths. You need at least one test each for `%w0d`, `%w999d`, and `%w-1d`.

https://github.com/llvm/llvm-project/pull/82461