In the case you are using redlib, you have to remove "CR_INTEGER_PRINTF" define from project settings -> Compiler -> Preprocessor.
The effect should be like this:
float x = 123.456;
printf("++++++++++++++++\n");
printf("%6.2f\n", x);
printf("%9.2f\n", x);
printf("%12.2f\n", x);
printf("%-6.2f\n", x);
printf("%-9.2f\n", x);
printf("%-12.2f\n", x);
Output:
++++++++++++++++
123.46
123.46
123.46
123.46
123.46
123.46
More details on CR_INTEGER_PRINTF can be found on MCUXpresso_IDE_User_Guide.pdf, chapter "16.5.1 Redlib printf Variants", paragraph: "Integer only vs full printf (including floating point)"
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