uclibc: Fix double promotion warning

Add casts where necessary to convince clang that the promotion of float
to double is intentional.

Co-authored-by: Sven Linker <sven.linker@kernkonzept.com>
Signed-off-by: Marcus Haehnel <marcus.haehnel@kernkonzept.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/libm/cexp.c b/libm/cexp.c
index 87512b7c5..a08d12d4e 100644
--- a/libm/cexp.c
+++ b/libm/cexp.c
@@ -38,10 +38,10 @@ libm_hidden_proto(cexpf)
 __complex__ float cexpf(__complex__ float z)
 {
 	__complex__ float ret;
-	double r_exponent = exp(__real__ z);
+	double r_exponent = exp((double)__real__ z);
 
-	__real__ ret = r_exponent * cosf(__imag__ z);
-	__imag__ ret = r_exponent * sinf(__imag__ z);
+	__real__ ret = r_exponent * (double) cosf(__imag__ z);
+	__imag__ ret = r_exponent * (double) sinf(__imag__ z);
 
 	return ret;
 }