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authorRich Felker <dalias@aerifal.cx>2022-01-18 17:31:46 -0500
committerRich Felker <dalias@aerifal.cx>2022-01-18 17:31:46 -0500
commit75b3412f3dbda8f1fc6818b8b0cf1d0737c2163c (patch)
tree95b73f346323f3d30cedd8a25d19039b1392e38b /src
parent52f0deb96975401d9f13334dc37f907630224af7 (diff)
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fix potentially wrong-sign zero in cproj functions at infinity
these are specified to use the sign of the imaginary part of the input as the sign of zero in the result, but wrongly copied the sign of the real part.
Diffstat (limited to 'src')
-rw-r--r--src/complex/cproj.c2
-rw-r--r--src/complex/cprojf.c2
-rw-r--r--src/complex/cprojl.c2
3 files changed, 3 insertions, 3 deletions
diff --git a/src/complex/cproj.c b/src/complex/cproj.c
index 9ae1e17c..d2b8f5a9 100644
--- a/src/complex/cproj.c
+++ b/src/complex/cproj.c
@@ -3,6 +3,6 @@
double complex cproj(double complex z)
{
if (isinf(creal(z)) || isinf(cimag(z)))
- return CMPLX(INFINITY, copysign(0.0, creal(z)));
+ return CMPLX(INFINITY, copysign(0.0, cimag(z)));
return z;
}
diff --git a/src/complex/cprojf.c b/src/complex/cprojf.c
index 03fab339..15a874bb 100644
--- a/src/complex/cprojf.c
+++ b/src/complex/cprojf.c
@@ -3,6 +3,6 @@
float complex cprojf(float complex z)
{
if (isinf(crealf(z)) || isinf(cimagf(z)))
- return CMPLXF(INFINITY, copysignf(0.0, crealf(z)));
+ return CMPLXF(INFINITY, copysignf(0.0, cimagf(z)));
return z;
}
diff --git a/src/complex/cprojl.c b/src/complex/cprojl.c
index 38a494c5..531ffa1c 100644
--- a/src/complex/cprojl.c
+++ b/src/complex/cprojl.c
@@ -9,7 +9,7 @@ long double complex cprojl(long double complex z)
long double complex cprojl(long double complex z)
{
if (isinf(creall(z)) || isinf(cimagl(z)))
- return CMPLXL(INFINITY, copysignl(0.0, creall(z)));
+ return CMPLXL(INFINITY, copysignl(0.0, cimagl(z)));
return z;
}
#endif