math: Ensure declarations of math functions. * modules/acosf (Depends-on): Add 'extensions'. * modules/asinf (Depends-on): Likewise. * modules/atan2f (Depends-on): Likewise. * modules/atanf (Depends-on): Likewise. * modules/cbrt (Depends-on): Likewise. * modules/cbrtf (Depends-on): Likewise. * modules/cbrtl (Depends-on): Likewise. * modules/copysignf (Depends-on): Likewise. * modules/copysignl (Depends-on): Likewise. * modules/cosf (Depends-on): Likewise. * modules/coshf (Depends-on): Likewise. * modules/expf (Depends-on): Likewise. * modules/fabsf (Depends-on): Likewise. * modules/fabsl (Depends-on): Likewise. * modules/fmaf (Depends-on): Likewise. * modules/fmal (Depends-on): Likewise. * modules/fmodf (Depends-on): Likewise. * modules/fmodl (Depends-on): Likewise. * modules/frexpf (Depends-on): Likewise. * modules/frexpl (Depends-on): Likewise. * modules/hypot (Depends-on): Likewise. * modules/hypotf (Depends-on): Likewise. * modules/hypotl (Depends-on): Likewise. * modules/ldexpf (Depends-on): Likewise. * modules/ldexpl (Depends-on): Likewise. * modules/log10f (Depends-on): Likewise. * modules/log10l (Depends-on): Likewise. * modules/log1p (Depends-on): Likewise. * modules/logb (Depends-on): Likewise. * modules/logf (Depends-on): Likewise. * modules/modff (Depends-on): Likewise. * modules/modfl (Depends-on): Likewise. * modules/powf (Depends-on): Likewise. * modules/remainderf (Depends-on): Likewise. * modules/remainderl (Depends-on): Likewise. * modules/rintf (Depends-on): Likewise. * modules/rintl (Depends-on): Likewise. * modules/sinf (Depends-on): Likewise. * modules/sinhf (Depends-on): Likewise. * modules/sqrtf (Depends-on): Likewise. * modules/tanf (Depends-on): Likewise. * modules/tanhf (Depends-on): Likewise. * m4/acosf.m4 (gl_FUNC_ACOSF): Require gl_USE_SYSTEM_EXTENSIONS. * m4/asinf.m4 (gl_FUNC_ASINF): Likewise. * m4/atan2f.m4 (gl_FUNC_ATAN2F): Likewise. * m4/atanf.m4 (gl_FUNC_ATANF): Likewise. * m4/cbrt.m4 (gl_FUNC_CBRT): Likewise. * m4/cbrtf.m4 (gl_FUNC_CBRTF): Likewise. * m4/cbrtl.m4 (gl_FUNC_CBRTL): Likewise. * m4/copysignf.m4 (gl_FUNC_COPYSIGNF): Likewise. * m4/copysignl.m4 (gl_FUNC_COPYSIGNL): Likewise. * m4/cosf.m4 (gl_FUNC_COSF): Likewise. * m4/coshf.m4 (gl_FUNC_COSHF): Likewise. * m4/expf.m4 (gl_FUNC_EXPF): Likewise. * m4/fabsf.m4 (gl_FUNC_FABSF): Likewise. * m4/fabsl.m4 (gl_FUNC_FABSL): Likewise. * m4/fmaf.m4 (gl_FUNC_FMAF): Likewise. * m4/fmal.m4 (gl_FUNC_FMAL): Likewise. * m4/fmodf.m4 (gl_FUNC_FMODF): Likewise. * m4/fmodl.m4 (gl_FUNC_FMODL): Likewise. * m4/frexpf.m4 (gl_FUNC_FREXPF): Likewise. * m4/frexpl.m4 (gl_FUNC_FREXPL): Likewise. * m4/hypot.m4 (gl_FUNC_HYPOT): Likewise. * m4/hypotf.m4 (gl_FUNC_HYPOTF): Likewise. * m4/hypotl.m4 (gl_FUNC_HYPOTL): Likewise. * m4/ldexpf.m4 (gl_FUNC_LDEXPF): Likewise. * m4/ldexpl.m4 (gl_FUNC_LDEXPL): Likewise. * m4/log10f.m4 (gl_FUNC_LOG10F): Likewise. * m4/log10l.m4 (gl_FUNC_LOF10L): Likewise. * m4/logb.m4 (gl_FUNC_LOGB): Likewise. * m4/logf.m4 (gl_FUNC_LOGF): Likewise. * m4/modff.m4 (gl_FUNC_MODFF): Likewise. * m4/modfl.m4 (gl_FUNC_MODFL): Likewise. * m4/powf.m4 (gl_FUNC_POWF): Likewise. * m4/remainderf.m4 (gl_FUNC_REMAINDERF): Likewise. * m4/remainderl.m4 (gl_FUNC_REMAINDERL): Likewise. * m4/rintf.m4 (gl_FUNC_RINTF): Likewise. * m4/rintl.m4 (gl_FUNC_RINTL): Likewise. * m4/sinf.m4 (gl_FUNC_SINF): Likewise. * m4/sinhf.m4 (gl_FUNC_SINHF): Likewise. * m4/sqrtf.m4 (gl_FUNC_SQRTF): Likewise. * m4/tanf.m4 (gl_FUNC_TANF): Likewise. * m4/tanhf.m4 (gl_FUNC_TANHF): Likewise.

Description:
atanf() function: inverse tangent function.

Files:
lib/atanf.c
m4/atanf.m4

Depends-on:
math
extensions
atan            [test $HAVE_ATANF = 0]

configure.ac:
gl_FUNC_ATANF
if test $HAVE_ATANF = 0; then
  AC_LIBOBJ([atanf])
fi
gl_MATH_MODULE_INDICATOR([atanf])

Makefile.am:

Include:
<math.h>

Link:
$(ATANF_LIBM)

License:
LGPL

Maintainer:
Bruno Haible