Annotation of parser3/src/types/pa_vdouble.h, revision 1.20
1.11 paf 1: /** @file
1.16 paf 2: Parser: @b double parser class decl.
1.11 paf 3:
1.1 paf 4: Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
1.11 paf 5:
1.2 paf 6: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.1 paf 7:
1.20 ! paf 8: $Id: pa_vdouble.h,v 1.19 2001/04/28 15:22:50 paf Exp $
1.1 paf 9: */
10:
11: #ifndef PA_VDOUBLE_H
12: #define PA_VDOUBLE_H
13:
1.19 paf 14: #include "classes.h"
1.9 paf 15: #include "pa_common.h"
1.5 paf 16: #include "pa_vstateless_object.h"
1.17 paf 17:
18: extern Methoded *double_class;
1.1 paf 19:
1.11 paf 20: /// value of type 'double'. implemented with @c double
1.4 paf 21: class VDouble : public VStateless_object {
1.1 paf 22: public: // Value
23:
24: const char *type() const { return "double"; }
1.11 paf 25: /// VDouble: this
1.14 paf 26: Value *as_expr_result(bool return_string_as_is=false) { return this; }
1.1 paf 27:
1.11 paf 28: /// VDouble: fdouble
1.1 paf 29: const String *get_string() {
1.6 paf 30: char *buf=(char *)pool().malloc(MAX_NUMBER);
31: snprintf(buf, MAX_NUMBER, "%g", fdouble);
1.8 paf 32: return NEW String(pool(), buf);
1.1 paf 33: }
1.11 paf 34: /// VDouble: fdouble
1.14 paf 35: double as_double() { return fdouble; }
1.11 paf 36: /// VDouble: 0 or !0
1.14 paf 37: bool as_bool() { return fdouble!=0; }
1.10 paf 38:
39: protected: // VAliased
40:
1.13 paf 41: /// disable .CLASS element. @see VAliased::get_element
1.15 paf 42: bool hide_class() { return true; }
1.1 paf 43:
44: public: // usage
45:
1.4 paf 46: VDouble(Pool& apool, double adouble) : VStateless_object(apool, *double_class),
1.1 paf 47: fdouble(adouble) {
48: }
49:
50: void inc(double increment) { fdouble+=increment; }
1.7 paf 51: void mul(double k) { fdouble*=k; }
52: void div(double d) { fdouble/=d; }
53: void mod(int d) { fdouble=((int)fdouble)%d; }
1.1 paf 54:
55: private:
56:
57: double fdouble;
58:
59: };
60:
61: #endif
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