Rule 13.7 and 14.1 : constant expression in conditional

  ./src/alloc.c
  ./src/math_double.c
  ./src/math_float.c
  ./src/math_longdouble.c
  ./src/printformat.c
  ./src/sc/asin_StarCore.c
  ./src/sc/atan2_StarCore.c
  ./src/sc/exp_StarCore.c
  ./src/sc/ldexp_StarCore.c
  ./src/sc/log10_StarCore.c
  ./src/sc/log_StarCore.c
  ./src/sc/math_StarCore.c
  ./src/sc/pow_StarCore.c
  ./src/sc/sinh_StarCore.c
  ./src/sc/sqrt_StarCore.c
  ./src/strtold.c
  ./src/sun_math/ansi_fp.c
  ./src/sun_math/Double_precision/e_acos.c
  ./src/sun_math/Double_precision/e_asin.c
  ./src/sun_math/Double_precision/e_atan2.c
  ./src/sun_math/Double_precision/e_atanh.c
  ./src/sun_math/Double_precision/e_cosh.c
  ./src/sun_math/Double_precision/e_cosh.c
  ./src/sun_math/Double_precision/e_exp.c
  ./src/sun_math/Double_precision/e_fmod.c
  ./src/sun_math/Double_precision/e_lgamma_r.c
  ./src/sun_math/Double_precision/e_log.c
  ./src/sun_math/Double_precision/e_log10.c
  ./src/sun_math/Double_precision/e_pow.c
  ./src/sun_math/Double_precision/e_remainder.c
  ./src/sun_math/Double_precision/e_sqrt.c
  ./src/sun_math/Double_precision/s_expml.c
  ./src/sun_math/Double_precision/s_ilogb.c
  ./src/sun_math/Double_precision/s_iloglp.c
  ./src/sun_math/Double_precision/s_iloglp.c
  ./src/sun_math/Double_precision/s_logb.c
  ./src/sun_math/math_sun.c
  ./src/sun_math/Single_precision/fmodf.c
  ./src/sun_math/Single_precision/log2f.c
  ./src/wcstold.c
  ./src/wprintf.c
  ./src/wprintformat.c