Functions | |
bool | approx (double a, double b, double epsilon=1e-5) |
bool | abs_approx (double a, double b, double epsilon=1e-5) |
int | intfloor (double arg) |
int | planck_nint (double arg) |
long | nlong (double arg) |
template<typename T> | |
T | weak_modulo (T v1, T v2) |
double | modulo (double v1, double v2) |
int | modulo (int v1, int v2) |
long | modulo (long v1, long v2) |
template<typename T> | |
T | sign (const T &signvalue) |
unsigned int | isqrt (unsigned int arg) |
double | safe_atan2 (double y, double x) |
template<typename T> | |
int | interpol_left (const T *begin, int len, const T &val) |
template<typename T> | |
int | interpol_nearest (const T *begin, int len, const T &val) |
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Returns true if | a-b | < epsilon * | b |, else false.
Definition at line 48 of file cxxutils.h. |
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Returns true if | a-b | < epsilon, else false.
Definition at line 55 of file cxxutils.h. |
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Returns the largest integer which is smaller than (or equal to) arg.
Definition at line 62 of file cxxutils.h. |
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Returns the integer which is nearest to arg.
Definition at line 68 of file cxxutils.h. |
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Returns the long integer which is nearest to arg.
Definition at line 75 of file cxxutils.h. |
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Returns v1+v2 if v1<0, v1-v2 if v1>=v2, else v1. v1 can be positive or negative; v2 must be positive. Definition at line 83 of file cxxutils.h. |
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Returns the remainder of the division v1/v2. The result is non-negative. v1 can be positive or negative; v2 must be positive. Definition at line 89 of file cxxutils.h. |
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Returns the remainder of the division v1/v2. The result is non-negative. v1 can be positive or negative; v2 must be positive. Definition at line 98 of file cxxutils.h. |
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Returns the remainder of the division v1/v2. The result is non-negative. v1 can be positive or negative; v2 must be positive. Definition at line 104 of file cxxutils.h. |
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Returns -1 if signvalue is negative, else +1.
Definition at line 109 of file cxxutils.h. |
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Returns the integer n, which fulfills n*n<=arg<(n+1)*(n+1).
Definition at line 113 of file cxxutils.h. |
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Returns atan2(y,x) if x!=0 or y!=0; else returns 0.
Definition at line 120 of file cxxutils.h. |
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Returns an index to the left of two interpolation values. begin points to an array containing a sequence of values sorted in ascending order. The length of the array is len. If val is lower than the first element, 0 is returned. If val is higher than the last element, len-2 is returned. Else, the index of the largest element smaller than val is returned. Definition at line 134 of file cxxutils.h. |
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Returns an index to the nearest interpolation value. begin points to an array containing a sequence of values sorted in ascending order. The length of the array is len. If val is lower than the first element, 0 is returned. If val is higher than the last element, len-1 is returned. Else, the index of the nearest element within the sequence of values is returned. Definition at line 151 of file cxxutils.h. |