kc3-lang/gnulib/modules/float

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• Hash : fda40b61
  Author :
  Date : 2024-08-01T00:46:49
  

  float: Update to mostly guarantee ISO C 23 compliance.
  
  * doc/posix-headers/float.texi: Mention the various portability
  problems.
  * lib/float.in.h (FLT_HAS_SUBNORM, FLT_DECIMAL_DIG, FLT_TRUE_MIN,
  DBL_HAS_SUBNORM, DBL_DECIMAL_DIG, DBL_TRUE_MIN, LDBL_HAS_SUBNORM,
  LDBL_DECIMAL_DIG, LDBL_TRUE_MIN): New macros.
  (gl_LDBL_TRUE_MIN): New declaration.
  (FLT_IS_IEC_60559, FLT_NORM_MAX, FLT_SNAN, GNULIB_defined_FLT_SNAN,
  DBL_IS_IEC_60559, DBL_NORM_MAX, DBL_SNAN, GNULIB_defined_DBL_SNAN,
  LDBL_IS_IEC_60559, LDBL_NORM_MAX, LDBL_SNAN, GNULIB_defined_LDBL_SNAN):
  New macros.
  (gl_FLT_SNAN_t, gl_DBL_SNAN_t, gl_LDBL_SNAN_t): New types.
  (gl_FLT_SNAN, gl_DBL_SNAN, gl_LDBL_SNAN): New declarations.
  * lib/float.c (gl_LDBL_TRUE_MIN): New variable.
  (gl_FLT_SNAN, gl_DBL_SNAN, gl_LDBL_SNAN): New variables.
  * m4/float_h.m4 (gl_FLOAT_H): Add check whether float.h conforms to
  ISO C23. Set REPLACE_FLOAT_SNAN.
  * modules/float (configure.ac): Test also REPLACE_FLOAT_SNAN. Require
  gl_BIGENDIAN.
  * tests/test-float.c: Also check FLT_EVAL_METHOD, FLT_HAS_SUBNORM,
  FLT_DECIMAL_DIG, FLT_IS_IEC_60559, FLT_TRUE_MIN, FLT_NORM_MAX,
  DBL_HAS_SUBNORM, DBL_DECIMAL_DIG, DBL_IS_IEC_60559, DBL_TRUE_MIN,
  DBL_NORM_MAX, LDBL_HAS_SUBNORM, LDBL_DECIMAL_DIG, LDBL_IS_IEC_60559.
  Conditionally check LDBL_TRUE_MIN, LDBL_NORM_MAX.
  Include isnanf-nolibm.h, isnand-nolibm.h, isnanl-nolibm.h.
  (test_float): Check the values of FLT_HAS_SUBNORM, FLT_DECIMAL_DIG,
  FLT_TRUE_MIN, FLT_IS_IEC_60559, FLT_NORM_MAX, FLT_SNAN.
  (test_double): Check the values of DBL_HAS_SUBNORM, DBL_DECIMAL_DIG,
  DBL_TRUE_MIN, DBL_IS_IEC_60559, DBL_NORM_MAX, DBL_SNAN.
  (test_long_double): Check the values of LDBL_HAS_SUBNORM,
  LDBL_DECIMAL_DIG, LDBL_TRUE_MIN, LDBL_IS_IEC_60559, LDBL_NORM_MAX,
  LDBL_SNAN.
  * modules/float-tests (Depends-on): Add isnanf-nolibm, isnand-nolibm,
  isnanl-nolibm.
  

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• modules/float

• Description:
  A correct <float.h>.
  
  Files:
  lib/float.in.h
  lib/float.c
  lib/itold.c
  m4/float_h.m4
  
  Depends-on:
  gen-header
  include_next
  
  configure.ac:
  gl_FLOAT_H
  gl_CONDITIONAL_HEADER([float.h])
  AC_PROG_MKDIR_P
  gl_CONDITIONAL([GL_COND_OBJ_FLOAT],
                 [test $REPLACE_FLOAT_LDBL = 1 || test $REPLACE_FLOAT_SNAN = 1])
  gl_CONDITIONAL([GL_COND_OBJ_ITOLD], [test $REPLACE_ITOLD = 1])
  dnl Prerequisites of lib/float.c.
  AC_REQUIRE([gl_BIGENDIAN])
  
  Makefile.am:
  BUILT_SOURCES += $(FLOAT_H)
  
  # We need the following in order to create <float.h> when the system
  # doesn't have one that works with the given compiler.
  if GL_GENERATE_FLOAT_H
  float.h: float.in.h $(top_builddir)/config.status
  @NMD@	$(AM_V_GEN)$(MKDIR_P) '%reldir%'
  	$(gl_V_at)$(SED_HEADER_STDOUT) \
  	      -e 's|@''GUARD_PREFIX''@|${gl_include_guard_prefix}|g' \
  	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
  	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
  	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
  	      -e 's|@''NEXT_FLOAT_H''@|$(NEXT_FLOAT_H)|g' \
  	      -e 's|@''REPLACE_ITOLD''@|$(REPLACE_ITOLD)|g' \
  	      $(srcdir)/float.in.h > $@-t
  	$(AM_V_at)mv $@-t $@
  else
  float.h: $(top_builddir)/config.status
  	rm -f $@
  endif
  MOSTLYCLEANFILES += float.h float.h-t
  
  if GL_COND_OBJ_FLOAT
  lib_SOURCES += float.c
  endif
  if GL_COND_OBJ_ITOLD
  lib_SOURCES += itold.c
  endif
  
  Include:
  <float.h>
  
  License:
  LGPLv2+
  
  Maintainer:
  all
  

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