/usr/share/doc/libntl-dev/NTL/vec_ZZ.txt is in libntl-dev 9.9.1-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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MODULE: vec_ZZ
SUMMARY:
Defines the class vec_ZZ.
\**************************************************************************/
typedef Vec<ZZ> vec_ZZ; // backward compatibility
void mul(vec_ZZ& x, const vec_ZZ& a, const ZZ& b);
void mul(vec_ZZ& x, const vec_ZZ& a, long b);
void mul(vec_ZZ& x, const ZZ& a, const vec_ZZ& b);
void mul(vec_ZZ& x, long a, const vec_ZZ& b);
// x = a * b
void add(vec_ZZ& x, const vec_ZZ& a, const vec_ZZ& b);
// x = a + b
void sub(vec_ZZ& x, const vec_ZZ& a, const vec_ZZ& b);
// x = a - b
void clear(vec_ZZ& x);
// x = 0 (length unchanged)
void negate(vec_ZZ& x, const vec_ZZ& a);
// x = -a
long IsZero(const vec_ZZ& a);
// test if a is the zero vector
void InnerProduct(ZZ& x, const vec_ZZ& a, const vec_ZZ& b);
// x = inner product of a and b, padded with zeros to make the lengths
// even.
void VectorCopy(vec_ZZ& x, const vec_ZZ& a, long n);
vec_ZZ VectorCopy(const vec_ZZ& a, long n);
// x = a copy of a of length exactly n.
// The input is truncated or padded with zeroes, as necessary.
// operator notation:
vec_ZZ operator+(const vec_ZZ& a, const vec_ZZ& b);
vec_ZZ operator-(const vec_ZZ& a, const vec_ZZ& b);
vec_ZZ operator-(const vec_ZZ& a);
// vector/scalar multiplication:
vec_ZZ operator*(const vec_ZZ& a, const ZZ& b);
vec_ZZ operator*(const vec_ZZ& a, long b);
vec_ZZ operator*(const ZZ& a, const vec_ZZ& b);
vec_ZZ operator*(long a, const vec_ZZ& b);
// inner product:
ZZ operator*(const vec_ZZ& a, const vec_ZZ& b);
// assignment operator notation:
vec_ZZ& operator+=(vec_ZZ& x, const vec_ZZ& a);
vec_ZZ& operator-=(vec_ZZ& x, const vec_ZZ& a);
vec_ZZ& operator*=(vec_ZZ& x, const ZZ& a);
vec_ZZ& operator*=(vec_ZZ& x, long a);
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