This assumes you have also specified the linker options to enable the floating point sprintf which are a pain to find. Starting with a fresh empty program that does nothing more that assign a floating point value and then uses sprintf to output it to a string, it increases code size to 3286 bytes on a 328P. I designed this library to avoid the memory consumption of linking in the floating point library and floating point enabled printf functions. You can leave the example file in the shared directory as a file to copy and rename when starting a new project. This is why it is important NOT to have a dsprintf_settings.h in your shared directory and why I have this file named dsprintf_settings_example.h instead.
This step is necessary because when the library tries to include "dsprintf_settings.h", it will look in your project directory and grab the one customized for that particular project. Project -> Configuration Options -> Include Directories -> New -> Add your project directory. You may have to modify this to point to your shared directory.ĥ. Put "#include ".\shared\dsprintf.h" in any of your C files that need to use the functions. Set the values appropriate to your project in "dsprintf_settings.h".Ĥ. NOTE THE "_example" was dropped from the filename.Ģ. Copy "dsprintf_settings_example.h" to your project directory as "dsprintf_settings.h". Put "#include "dsprintf.h" in any of your C files that need to use the functions.ġ. Set the values appropriate to your project in "dsprintf_settings.h".ĥ.
Rename "dsprintf_settings_example.h" to "dsprintf_settings.h".ģ. Copy these files into your project directory.Ģ. Then you only have one place to update them instead of multiple project directories.ġ.
Another advantage is that since they are unmodified, you can put them in a shared or library directory and use them in multiple separate projects. The advantage to this is that the main C/H files are unmodified and can be updated to a new version without losing custom per project settings. The settings that are intended to be customized for each project are located in this file. Dsprintf.c - Main code file, you must add this to your project under "Source Files".ĭsprintf.h - Main include file, you must include this in any files you wish to use the library.ĭsprintf_settings_example.h - This is an example of the dsprintf_settings.h file that the library requires (and will try to include).
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