# scottransom/pyslalib

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 #ifndef SLAMACHDEF #define SLAMACHDEF /* ** - - - - - - - - - ** s l a m a c . h ** - - - - - - - - - ** ** Macros used by slalib library. ** ** Last revision: 5 June 1996 ** ** Copyright P.T.Wallace. All rights reserved. */ /* max(A,B) - larger (most +ve) of two numbers (generic) */ #define gmax(A,B) ((A)>(B)?(A):(B)) /* min(A,B) - smaller (least +ve) of two numbers (generic) */ #define gmin(A,B) ((A)<(B)?(A):(B)) /* dint(A) - truncate to nearest whole number towards zero (double) */ #define dint(A) ((A)<0.0?ceil(A):floor(A)) /* aint(A) - truncate to nearest whole number towards zero (float) */ #define aint(A) ((A)<0.0f?(float)ceil((double)(A)):(float)floor((double)(A))) /* dnint(A) - round to nearest whole number (double) */ #define dnint(A) ((A)<0.0?ceil((A)-0.5):floor((A)+0.5)) /* anint(A) - round to nearest whole number (float) */ #define anint(A) ((float)dnint((double)(A))) /* dsign(A,B) - magnitude of A with sign of B (double) */ #define dsign(A,B) ((B)<0.0?-(A):(A)) /* dmod(A,B) - A modulo B (double) */ #define dmod(A,B) ((B)!=0.0?((A)*(B)>0.0?(A)-(B)*floor((A)/(B))\ :(A)+(B)*floor(-(A)/(B))):(A)) /* logicals */ #if !defined(FALSE) || ((FALSE)!=0) #define FALSE 0 #endif #if !defined(TRUE) || ((TRUE)!=1) #define TRUE 1 #endif /* pi */ #define DPI 3.1415926535897932384626433832795028841971693993751 /* 2pi */ #define D2PI 6.2831853071795864769252867665590057683943387987502 /* 1/(2pi) */ #define D1B2PI 0.15915494309189533576888376337251436203445964574046 /* 4pi */ #define D4PI 12.566370614359172953850573533118011536788677597500 /* 1/(4pi) */ #define D1B4PI 0.079577471545947667884441881686257181017229822870228 /* pi^2 */ #define DPISQ 9.8696044010893586188344909998761511353136994072408 /* sqrt(pi) */ #define DSQRPI 1.7724538509055160272981674833411451827975494561224 /* pi/2: 90 degrees in radians */ #define DPIBY2 1.5707963267948966192313216916397514420985846996876 /* pi/180: degrees to radians */ #define DD2R 0.017453292519943295769236907684886127134428718885417 /* 180/pi: radians to degrees */ #define DR2D 57.295779513082320876798154814105170332405472466564 /* pi/(180*3600): arcseconds to radians */ #define DAS2R 4.8481368110953599358991410235794797595635330237270e-6 /* 180*3600/pi : radians to arcseconds */ #define DR2AS 2.0626480624709635515647335733077861319665970087963e5 /* pi/12: hours to radians */ #define DH2R 0.26179938779914943653855361527329190701643078328126 /* 12/pi: radians to hours */ #define DR2H 3.8197186342054880584532103209403446888270314977709 /* pi/(12*3600): seconds of time to radians */ #define DS2R 7.2722052166430399038487115353692196393452995355905e-5 /* 12*3600/pi: radians to seconds of time */ #define DR2S 1.3750987083139757010431557155385240879777313391975e4 /* 15/(2pi): hours to degrees x radians to turns */ #define D15B2P 2.3873241463784300365332564505877154305168946861068 #endif