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greg |
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/* |
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** Author: Christian Reetz ([email protected]) |
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*/ |
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#ifndef __GBASIC_H |
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#define __GBASIC_H |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#include <math.h> |
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#ifndef g3Float |
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#define g3Float double |
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#define USE_DOUBLE 1 |
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#define GB_EPSILON 1e-6 |
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#else |
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#define GB_EPSILON 1e-4 |
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#endif |
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typedef unsigned char uchar; |
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#define DEG2RAD(x) ((x)*M_PI/180.0) |
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#define RAD2DEG(x) ((x)*180.0/M_PI) |
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#define GB_SWAP(a,b) {g3Float temp=(a);(a)=(b);(b)=temp;} |
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#define gb_swap(a,b) GB_SWAP(a,b) |
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#define gb_random() (((g3Float) rand())/(RAND_MAX-1)) |
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int gb_epsorder(g3Float a,g3Float b); |
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int gb_epseq(g3Float a,g3Float b); |
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int gb_inrange(g3Float a,g3Float rb,g3Float re); |
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int gb_signum(g3Float a); |
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g3Float gb_max(g3Float a,g3Float b); |
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g3Float gb_min(g3Float a,g3Float b); |
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/* Roots of quadratic formula |
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Returns zero if roots are not real, 1 for single root and 2 otherwise |
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*/ |
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int gb_getroots(g3Float* r1,g3Float* r2,g3Float a,g3Float b,g3Float c); |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif |
