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Fix for minimal-printf when printing sign of double between 0.0 and -1.0 #13872

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Fix for minimal-printf when printing sign of double between 0.0 and -1.0 #13872

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6 changes: 6 additions & 0 deletions platform/source/minimal-printf/mbed_printf_implementation.c
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Original file line number Diff line number Diff line change
Expand Up @@ -264,6 +264,12 @@ static void mbed_minimal_formatted_string_double(char *buffer, size_t length, in
/* get integer part */
MBED_SIGNED_STORAGE integer = value;

/* write sign if integer part is zero and value is negative */
if ((value < 0.0) && (integer == 0)) {
/* write sign */
mbed_minimal_putchar(buffer, length, result, '-', stream);
}

/* write integer part */
mbed_minimal_formatted_string_signed(buffer, length, result, integer, stream);

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