StrForeachPtrInRangeIdx
Description
Walk characters of str in the half-open range [start, end), binding chrptr to a pointer to the character at index idx. Both chrptr and idx are stamped by the macro. See VecForeachPtrInRangeIdx for the full SUCCESS/FAILURE contract.
Usage example (Cross-references)
Usage examples (Cross-references)
// Test StrForeachPtrInRangeIdx macro
bool test_str_foreach_ptr_in_range_idx(void) {
WriteFmt("Testing StrForeachPtrInRangeIdx\n");
DefaultAllocator alloc = DefaultAllocatorInit(); // Build a new string by iterating through a range of character pointers with indices
Str result = StrInit(&alloc);
StrForeachPtrInRangeIdx(&s, chrptr, idx, 6, 11) {
// Append the character and its index to the result string
StrAppendFmt(&result, "{c}{}", *chrptr, idx); // Make idx go out of bounds in StrForeachPtrInRangeIdx by modifying string during iteration
bool test_str_foreach_ptr_in_range_idx_out_of_bounds_access(void) {
WriteFmt("Testing StrForeachPtrInRangeIdx where idx goes out of bounds\n");
DefaultAllocator alloc = DefaultAllocatorInit(); // Use StrForeachPtrInRangeIdx with a fixed range that becomes invalid when we modify the string
size original_length = StrLen(&s); // Capture this as 32
StrForeachPtrInRangeIdx(&s, chr_ptr, idx, 0, original_length) {
WriteFmt("Accessing idx {} (s.length={}): '{c}'\n", idx, StrLen(&s), *chr_ptr);
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