Annotation of parser3/src/types/pa_vdouble.h, revision 1.5
1.1 paf 1: /*
2: Parser
3: Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
1.2 paf 4: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.1 paf 5:
1.5 ! paf 6: $Id: pa_vdouble.h,v 1.4 2001/03/11 21:23:59 paf Exp $
1.1 paf 7: */
8:
9: #ifndef PA_VDOUBLE_H
10: #define PA_VDOUBLE_H
11:
1.5 ! paf 12: #include "pa_vstateless_object.h"
1.1 paf 13: #include "pa_common.h"
14: #include "_double.h"
15:
16: #define MAX_DOUBLE_AS_STRING 20
17:
1.4 paf 18: class VDouble : public VStateless_object {
1.1 paf 19: public: // Value
20:
21: // all: for error reporting after fail(), etc
22: const char *type() const { return "double"; }
23: // double: this
24: Value *get_expr_result() { return this; }
25:
26: // double: fdouble
27: const String *get_string() {
28: char *buf=static_cast<char *>(pool().malloc(MAX_DOUBLE_AS_STRING));
29: snprintf(buf, MAX_DOUBLE_AS_STRING, "%g", fdouble);
30: String *result=NEW String(pool());
31: result->APPEND_CONST(buf);
32: return result;
33: }
34: // double: fdouble
35: double get_double() { return fdouble; }
36: // double: 0 or !0
37: bool get_bool() { return fdouble!=0; }
38:
39: public: // usage
40:
1.4 paf 41: VDouble(Pool& apool, double adouble) : VStateless_object(apool, *double_class),
1.1 paf 42: fdouble(adouble) {
43: }
44:
45: void inc(double increment) { fdouble+=increment; }
46:
47: private:
48:
49: double fdouble;
50:
51: };
52:
53: #endif
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