platform_ldbl96.c revision 1.4
11.4Srillig/* $NetBSD: platform_ldbl96.c,v 1.4 2023/04/05 20:13:01 rillig Exp $ */ 21.1Srillig# 3 "platform_ldbl96.c" 31.1Srillig 41.1Srillig/* 51.1Srillig * Test features that only apply to platforms that have 96-bit long double. 61.1Srillig */ 71.1Srillig 81.4Srillig/* lint1-extra-flags: -c -h -a -p -b -r -z -X 351 */ 91.1Srillig/* lint1-only-if: ldbl-96 */ 101.1Srillig 111.3Srillig/* CONSTCOND */ 121.3Srilligtypedef int bits_per_byte[((unsigned char)-1) == 255 ? 1 : -1]; 131.3Srilligtypedef int bytes_per_long_double[sizeof(long double) == 12 ? 1 : -1]; 141.4Srillig 151.4Srillig/* 161.4Srillig * Both i386 and m68k use the same floating point format for 'long double', 171.4Srillig * which has 1 bit sign + 15 bit exponent + 64 bit unnormalized mantissa. 181.4Srillig * This means the maximum representable value is 1.1111111(bin) * 2^16383, 191.4Srillig * which is about 1.189e4932. 201.4Srillig */ 211.4Srillig/* FIXME: Remove the duplicate warning. */ 221.4Srillig/* expect+2: warning: floating-point constant out of range [248] */ 231.4Srillig/* expect+1: warning: floating-point constant out of range [248] */ 241.4Srilligdouble larger_than_ldbl = 1e4933; 251.4Srillig/* expect+1: warning: floating-point constant out of range [248] */ 261.4Srilliglong double larger_than_ldbl_l = 1e4933L; 271.4Srillig/* expect+1: warning: floating-point constant out of range [248] */ 281.4Srilligdouble larger_than_dbl = 1e4932; 291.4Srillig/* Fits in 'long double' but not in 'double'. */ 301.4Srilliglong double larger_than_dbl_l = 1e4932L; 31