================
@@ -173,5 +173,145 @@ RT_API_ATTRS void ShallowCopy(const Descriptor &to, const
Descriptor &from) {
ShallowCopy(to, from, to.IsContiguous(), from.IsContiguous());
}
+RT_API_ATTRS const char *EnsureNullTerminated(
+ const char *str, size_t length, Terminator &terminator) {
+ if (length <= std::strlen(str)) {
+ char *newCmd{(char *)AllocateMemoryOrCrash(terminator, length + 1)};
+ std::memcpy(newCmd, str, length);
+ newCmd[length] = '\0';
+ return newCmd;
+ } else {
+ return str;
+ }
+}
+
+RT_API_ATTRS std::size_t LengthWithoutTrailingSpaces(const Descriptor &d) {
+ std::size_t s{d.ElementBytes() - 1};
+ while (*d.OffsetElement(s) == ' ') {
+ --s;
+ }
+ return s + 1;
+}
+
+// Returns the length of the \p string. Assumes \p string is valid.
+RT_API_ATTRS std::int64_t StringLength(const char *string) {
+ std::size_t length{std::strlen(string)};
+ if constexpr (sizeof(std::size_t) < sizeof(std::int64_t)) {
+ return static_cast<std::int64_t>(length);
+ } else {
+ std::size_t max{std::numeric_limits<std::int64_t>::max()};
+ return length > max ? 0 // Just fail.
+ : static_cast<std::int64_t>(length);
+ }
+}
+
+RT_API_ATTRS bool IsValidCharDescriptor(const Descriptor *value) {
+ return value && value->IsAllocated() &&
+ value->type() == TypeCode(TypeCategory::Character, 1) &&
+ value->rank() == 0;
+}
+
+RT_API_ATTRS bool IsValidIntDescriptor(const Descriptor *length) {
+ auto typeCode{length->type().GetCategoryAndKind()};
+ // Check that our descriptor is allocated and is a scalar integer with
+ // kind != 1 (i.e. with a large enough decimal exponent range).
+ return length->IsAllocated() && length->rank() == 0 &&
+ length->type().IsInteger() && typeCode && typeCode->second != 1;
+}
+
+RT_API_ATTRS void FillWithSpaces(const Descriptor &value, std::size_t offset) {
+ if (offset < value.ElementBytes()) {
----------------
klausler wrote:
If it's not a safe general-purpose utility routine, then don't put it into
`tools.cpp`. Or leave it here and add some checking.
https://github.com/llvm/llvm-project/pull/74077
_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
