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Process: Handle rounding ambiguity between 99.9 and 100.0

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Depending upon default behavior of the compiler and floating-point
environment, compiler could round down the value between "99.9" and
"100.0" to "99.0", instead of rounding it to the nearest value, "100.0".

Note: The floating-point environment access and modification is only
meaningful when "#pragma STD FENV_ACCESS" is set to "ON"[1]. Otherwise
implementation is free to assume that floating-point control modes are
always the default. So it would be a good idea to address the rounding
ambiguity between "99.9" and "100.0" to become compiler agnostic.

[1]: https://en.cppreference.com/w/c/numeric/fenv

Credits: @Explorer09, thanks for the suggestion.
This commit is contained in:
Kumar 2022-02-19 07:35:04 +05:30 committed by BenBE
parent da653f8148
commit 6133cac721
1 changed files with 3 additions and 1 deletions
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Process.c
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@ -741,7 +741,9 @@ void Process_printPercentage(float val, char* buffer, int n, int* attr) {
xSnprintf(buffer, n, "%4.1f ", val);
} else {
*attr = CRT_colors[PROCESS_MEGABYTES];
xSnprintf(buffer, n, "%4d ", (int)val);
if (val < 100.0F)
val = 100.0F; // Don't round down and display "val" as "99".
xSnprintf(buffer, n, "%4.0f ", val);
}
} else {
*attr = CRT_colors[PROCESS_SHADOW];