Fix duplicate minus in print output.

Co-authored-by: kleonc <[email protected]>

Author: bruvzg

core/string/ustring.cpp

@@ -5262,7 +5262,11 @@ String String::sprintf(const Span<Variant> &values, bool *error) const {
 					// Get basic number.
 					String str;
 					if (!as_unsigned) {
-						str = String::num_int64(Math::abs(value), base, capitalize);
+						if (value == INT64_MIN) { // INT64_MIN can't be represented as positive value.
+							str = String::num_int64(value, base, capitalize).trim_prefix("-");
+						} else {
+							str = String::num_int64(Math::abs(value), base, capitalize);
+						}
 					} else {
 						uint64_t uvalue = *((uint64_t *)&value);
 						// In unsigned hex, if the value fits in 32 bits, trim it down to that.

tests/core/string/test_string.h

@@ -992,6 +992,38 @@ TEST_CASE("[String] sprintf") {
 	REQUIRE(error == false);
 	CHECK(output == String("fish 143 frog"));
 
+	// INT64_MIN
+	format = "fish %d frog";
+	args.clear();
+	args.push_back(INT64_MIN);
+	output = format.sprintf(args, &error);
+	REQUIRE(error == false);
+	CHECK(output == String("fish -9223372036854775808 frog"));
+
+	// INT64_MIN hex (lower)
+	format = "fish %x frog";
+	args.clear();
+	args.push_back(INT64_MIN);
+	output = format.sprintf(args, &error);
+	REQUIRE(error == false);
+	CHECK(output == String("fish -8000000000000000 frog"));
+
+	// INT64_MIN hex (upper)
+	format = "fish %X frog";
+	args.clear();
+	args.push_back(INT64_MIN);
+	output = format.sprintf(args, &error);
+	REQUIRE(error == false);
+	CHECK(output == String("fish -8000000000000000 frog"));
+
+	// INT64_MIN octal
+	format = "fish %o frog";
+	args.clear();
+	args.push_back(INT64_MIN);
+	output = format.sprintf(args, &error);
+	REQUIRE(error == false);
+	CHECK(output == String("fish -1000000000000000000000 frog"));
+
 	///// Reals
 
 	// Real