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InputText: allow passing an empty string with buf_size==0. (#8907)

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ocornut 2025-08-27 20:21:31 +02:00
parent 9f969944d5
commit 55cbc66508
2 changed files with 6 additions and 2 deletions
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imgui_widgets.cpp
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@ -4653,7 +4653,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
// Take a copy of the initial buffer value.
// From the moment we focused we are normally ignoring the content of 'buf' (unless we are in read-only mode)
const int buf_len = (int)ImStrlen(buf);
IM_ASSERT(buf_len + 1 <= buf_size && "Is your input buffer properly zero-terminated?");
IM_ASSERT(((buf_len + 1 <= buf_size) || (buf_len == 0 && buf_size == 0)) && "Is your input buffer properly zero-terminated?");
state->TextToRevertTo.resize(buf_len + 1); // UTF-8. we use +1 to make sure that .Data is always pointing to at least an empty string.
memcpy(state->TextToRevertTo.Data, buf, buf_len + 1);