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Using fabs() function instead abs() #24

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xoptov wants to merge 1 commit into from
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Using fabs() function instead abs() #24

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2 changes: 1 addition & 1 deletion geospatial.c
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Original file line number Diff line number Diff line change
Expand Up @@ -460,7 +460,7 @@ geo_lat_long cartesian_to_polar(double x, double y, double z, geo_ellipsoid eli)
double phi = atan2(z, p * (1 - eSq));
double phiP = 2 * M_PI;

while (abs(phi - phiP) > precision) {
while (fabs(phi - phiP) > precision) {
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@derickr derickr Mar 12, 2018

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This PR made one of the tests fail: https://travis-ci.org/php-geospatial/geospatial/jobs/351708921#L643

Can you investigate whether the new value is correct, as the loop where you changed abs to fabs might now run once more or less?

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@xoptov xoptov Mar 16, 2018

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I have warning when compile geospatil.so in FreeBSD 10.3. Warning saying about using fabs instead abs. When I changed abs to fabs warning is gone!

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@derickr derickr Apr 3, 2018

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That's fine, but it breaks a test if you change it. So either the test is wrong, or something else is going on.

nu = eli.a / sqrt(1 - eSq * sin(phi) * sin(phi));
phiP = phi;
phi = atan2(z + eSq * nu * sin(phi), p);
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