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| deva | Problem: Handling of localized atof / printf("%f") ... how/is that done in LV2? | 11:10 |
|---|---|---|
| falktx | is that an lv2 issue? | 11:11 |
| deva | Storing floating point values as a string on one system and then parsing them on another is a problem, yes, if you cannot rely on thet fact that it uses dot for decimal sepeartion... | 11:12 |
| deva | Values stored in the state extension for example | 11:12 |
| deva | *by | 11:12 |
| deva | falktx, Did you know that atof is locale sensitive? | 11:17 |
| deva | Because I'm getting the feeling that this is not common knowledge amongst developers | 11:18 |
| falktx | I know yes | 11:18 |
| falktx | I have to set locale to "C" when writing and reading some buffers | 11:18 |
| falktx | but it has nothing to do with lv2 | 11:18 |
| deva | it has, if you store a float value in your state, and then move the project to a computer with another locale | 11:19 |
| falktx | but that's up to your plugin to handle | 11:24 |
| falktx | like handling chunks in 32bit vs 64bit | 11:24 |
| falktx | a preset can be done in a 32bit system and loaded in a 64bit one | 11:24 |
| falktx | the plugin is the one that has to ensure it works | 11:24 |
| deva | So if you request the host to store an atom:Float, and this is stored in ttl syntax (converted to a string) internally on the host somewhere you don't think that should be handled by the host? | 11:28 |
| falktx | oh | 11:38 |
| falktx | is the host the one doing that? you sure? | 11:38 |
| falktx | anyway, ping drobilla ;) | 11:38 |
| falktx | later | 11:38 |
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| deva | drobilla, ping? ^^^^^ | 11:40 |
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| drobilla | deva: If it's just an LV2 plugin, then store it as a float atom and let the host deal with it | 15:03 |
| drobilla | deva: Do not screw with the locale in that case. It will be handled correctly. | 15:04 |
| deva | drobilla, But is it handled in the current lv2 implementation (that would be lilv I suppose) ? | 15:04 |
| drobilla | deva: Yes. It is a portable serializer for a standard portable syntax, does not use printf and friends. | 15:04 |
| drobilla | (serd via lilv) | 15:05 |
| deva | phew :-) | 15:05 |
| drobilla | Theoretically some host could do it another way, but if you're passing it actual numbers clearly it's the host's responsibility anyway | 15:05 |
| deva | I think you are stating pretty clearly in the documentation that the implementation must be portable, so if other hosts implement it in other ways, that would just be an error | 15:06 |
| drobilla | Depending on flags anyway, yeah | 15:10 |
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