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May 6, 2023 23:53
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drop in non-blocking replacement for std::getline
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| #include <iostream> | |
| bool getline_async(std::istream& is, std::string& str, char delim = '\n') { | |
| static std::string lineSoFar; | |
| char inChar; | |
| int charsRead = 0; | |
| bool lineRead = false; | |
| str = ""; | |
| do { | |
| charsRead = is.readsome(&inChar, 1); | |
| if (charsRead == 1) { | |
| // if the delimiter is read then return the string so far | |
| if (inChar == delim) { | |
| str = lineSoFar; | |
| lineSoFar = ""; | |
| lineRead = true; | |
| } else { // otherwise add it to the string so far | |
| lineSoFar.append(1, inChar); | |
| } | |
| } | |
| } while (charsRead != 0 && !lineRead); | |
| return lineRead; | |
| } |
doesnt work
Can you describe the issue you're having. I've successfully used this function many times.
dont remember but i was using it on a embedded system and it was returning garbage.
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doesnt work