platform_ldbl96.c revision 1.7 
11.7Srillig/*	$NetBSD: platform_ldbl96.c,v 1.7 2025/04/10 20:37:49 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 */
91.6Srillig/* lint1-only-if: ldbl96 */
101.1Srillig
111.3Srilligtypedef int bits_per_byte[((unsigned char)-1) == 255 ? 1 : -1];
121.3Srilligtypedef int bytes_per_long_double[sizeof(long double) == 12 ? 1 : -1];
131.4Srillig
141.4Srillig/*
151.4Srillig * Both i386 and m68k use the same floating point format for 'long double',
161.4Srillig * which has 1 bit sign + 15 bit exponent + 64 bit unnormalized mantissa.
171.4Srillig * This means the maximum representable value is 1.1111111(bin) * 2^16383,
181.4Srillig * which is about 1.189e4932.
191.4Srillig */
201.4Srillig/* expect+1: warning: floating-point constant out of range [248] */
211.4Srilligdouble larger_than_ldbl = 1e4933;
221.4Srillig/* expect+1: warning: floating-point constant out of range [248] */
231.4Srilliglong double larger_than_ldbl_l = 1e4933L;
241.4Srillig/* expect+1: warning: floating-point constant out of range [248] */
251.4Srilligdouble larger_than_dbl = 1e4932;
261.4Srillig/* Fits in 'long double' but not in 'double'. */
271.4Srilliglong double larger_than_dbl_l = 1e4932L;
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