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* include/ruby/missing.h (nextafter): New optional declaration. * missing/nextafter.c: New file. * numeric.c: Float#next_float and Float#prev_float implemented. [ruby-core:62562] [Feature #9834] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45982 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
36 lines
689 B
C
36 lines
689 B
C
#include "ruby.h"
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static VALUE
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system_nextafter_m(VALUE klass, VALUE vx, VALUE vy)
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{
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double x, y, z;
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x = NUM2DBL(vx);
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y = NUM2DBL(vy);
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z = nextafter(x, y);
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return DBL2NUM(z);
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}
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#define nextafter missing_nextafter
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#include "../../../missing/nextafter.c"
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#undef nextafter
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static VALUE
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missing_nextafter_m(VALUE klass, VALUE vx, VALUE vy)
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{
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double x, y, z;
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x = NUM2DBL(vx);
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y = NUM2DBL(vy);
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z = missing_nextafter(x, y);
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return DBL2NUM(z);
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}
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void
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Init_nextafter(VALUE klass)
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{
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rb_define_singleton_method(klass, "system_nextafter", system_nextafter_m, 2);
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rb_define_singleton_method(klass, "missing_nextafter", missing_nextafter_m, 2);
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}
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