21850311256

Committed 10 Feb 2026 03:17AM UTC coverage: 91.635% (+0.001%) from 91.634%

Build # 21850311256

Build Type

Pull #5302

github

Committed by

web-flow

Commit Message

Merge 26bacb252 into 1d119e57a

Pull Request Pull Request #5302: Cleanup various header inclusions

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95.7

/src/lib/ffi/ffi_mp.cpp

/*
* (C) 2015,2017 Jack Lloyd
* (C) 2017 Ribose Inc
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include <botan/ffi.h>

#include <botan/assert.h>
#include <botan/numthry.h>
#include <botan/internal/barrett.h>
#include <botan/internal/divide.h>
#include <botan/internal/ffi_mp.h>
#include <botan/internal/ffi_rng.h>
#include <botan/internal/ffi_util.h>
#include <botan/internal/mem_utils.h>
#include <botan/internal/mod_inv.h>

extern "C" {

using namespace Botan_FFI;

int botan_mp_init(botan_mp_t* mp_out) {
   return ffi_guard_thunk(__func__, [=]() -> int {
      if(mp_out == nullptr) {
         return BOTAN_FFI_ERROR_NULL_POINTER;
      }

      auto mp = std::make_unique<Botan::BigInt>();
      return ffi_new_object(mp_out, std::move(mp));
   });
}

int botan_mp_clear(botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](auto& bn) { bn.clear(); });
}

int botan_mp_set_from_int(botan_mp_t mp, int initial_value) {
   return BOTAN_FFI_VISIT(mp, [=](auto& bn) { bn = Botan::BigInt::from_s32(initial_value); });
}

int botan_mp_set_from_str(botan_mp_t mp, const char* str) {
   return BOTAN_FFI_VISIT(mp, [=](auto& bn) { bn = Botan::BigInt(str); });
}

int botan_mp_set_from_radix_str(botan_mp_t mp, const char* str, size_t radix) {
   return BOTAN_FFI_VISIT(mp, [=](auto& bn) {
      Botan::BigInt::Base base;
      if(radix == 10) {
         base = Botan::BigInt::Decimal;
      } else if(radix == 16) {
         base = Botan::BigInt::Hexadecimal;
      } else {
         return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
      }

      bn = Botan::BigInt::decode(Botan::cstr_as_span_of_bytes(str), base);
      return BOTAN_FFI_SUCCESS;
   });
}

// NOLINTBEGIN(misc-misplaced-const)

int botan_mp_set_from_mp(botan_mp_t dest, const botan_mp_t source) {
   return BOTAN_FFI_VISIT(dest, [=](auto& bn) { bn = safe_get(source); });
}

int botan_mp_is_negative(const botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](const auto& bn) { return bn.is_negative() ? 1 : 0; });
}

int botan_mp_is_positive(const botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](const auto& bn) { return bn.is_positive() ? 1 : 0; });
}

int botan_mp_flip_sign(botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](auto& bn) { bn.flip_sign(); });
}

int botan_mp_from_bin(botan_mp_t mp, const uint8_t bin[], size_t bin_len) {
   return BOTAN_FFI_VISIT(mp, [=](auto& bn) { bn._assign_from_bytes({bin, bin_len}); });
}

int botan_mp_to_hex(const botan_mp_t mp, char* out) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& bn) {
      const std::string hex = bn.to_hex_string();

      // Check that we are about to write no more than the documented upper bound
      const size_t upper_bound = 2 * bn.bytes() + 5;
      BOTAN_ASSERT_NOMSG(hex.size() + 1 <= upper_bound);
      std::memcpy(out, hex.c_str(), 1 + hex.size());
   });
}

int botan_mp_view_hex(const botan_mp_t mp, botan_view_ctx ctx, botan_view_str_fn view) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& bn) -> int {
      const std::string hex = bn.to_hex_string();
      return invoke_view_callback(view, ctx, hex);
   });
}

int botan_mp_to_str(const botan_mp_t mp, uint8_t radix, char* out, size_t* out_len) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& bn) -> int {
      if(radix == 0 || radix == 10) {
         return write_str_output(out, out_len, bn.to_dec_string());
      } else if(radix == 16) {
         return write_str_output(out, out_len, bn.to_hex_string());
      } else {
         return BOTAN_FFI_ERROR_BAD_PARAMETER;
      }
   });
}

int botan_mp_view_str(const botan_mp_t mp, uint8_t radix, botan_view_ctx ctx, botan_view_str_fn view) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& bn) -> int {
      if(radix == 10) {
         return invoke_view_callback(view, ctx, bn.to_dec_string());
      } else if(radix == 16) {
         return invoke_view_callback(view, ctx, bn.to_hex_string());
      } else {
         return BOTAN_FFI_ERROR_BAD_PARAMETER;
      }
   });
}

int botan_mp_to_bin(const botan_mp_t mp, uint8_t vec[]) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& bn) { bn.serialize_to(std::span{vec, bn.bytes()}); });
}

int botan_mp_view_bin(const botan_mp_t mp, botan_view_ctx ctx, botan_view_bin_fn view) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& bn) {
      const auto bytes = bn.serialize();
      return invoke_view_callback(view, ctx, bytes);
   });
}

int botan_mp_to_uint32(const botan_mp_t mp, uint32_t* val) {
   if(val == nullptr) {
      return BOTAN_FFI_ERROR_NULL_POINTER;
   }
   return BOTAN_FFI_VISIT(mp, [=](const auto& bn) { *val = bn.to_u32bit(); });
}

int botan_mp_destroy(botan_mp_t mp) {
   return BOTAN_FFI_CHECKED_DELETE(mp);
}

int botan_mp_add(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) {
   return BOTAN_FFI_VISIT(result, [=](auto& res) {
      if(result == x) {
         res += safe_get(y);
      } else {
         res = safe_get(x) + safe_get(y);
      }
   });
}

int botan_mp_sub(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) {
   return BOTAN_FFI_VISIT(result, [=](auto& res) {
      if(result == x) {
         res -= safe_get(y);
      } else {
         res = safe_get(x) - safe_get(y);
      }
   });
}

int botan_mp_add_u32(botan_mp_t result, const botan_mp_t x, uint32_t y) {
   return BOTAN_FFI_VISIT(result, [=](auto& res) {
      if(result == x) {
         res += static_cast<Botan::word>(y);
      } else {
         res = safe_get(x) + static_cast<Botan::word>(y);
      }
   });
}

int botan_mp_sub_u32(botan_mp_t result, const botan_mp_t x, uint32_t y) {
   return BOTAN_FFI_VISIT(result, [=](auto& res) {
      if(result == x) {
         res -= static_cast<Botan::word>(y);
      } else {
         res = safe_get(x) - static_cast<Botan::word>(y);
      }
   });
}

int botan_mp_mul(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) {
   return BOTAN_FFI_VISIT(result, [=](auto& res) {
      if(result == x) {
         res *= safe_get(y);
      } else {
         res = safe_get(x) * safe_get(y);
      }
   });
}

int botan_mp_div(botan_mp_t quotient, botan_mp_t remainder, const botan_mp_t x, const botan_mp_t y) {
   return BOTAN_FFI_VISIT(quotient, [=](auto& q) {
      Botan::BigInt r;
      Botan::vartime_divide(safe_get(x), safe_get(y), q, r);
      safe_get(remainder) = r;
   });
}

int botan_mp_equal(const botan_mp_t x_w, const botan_mp_t y_w) {
   return BOTAN_FFI_VISIT(x_w, [=](const auto& x) -> int { return x == safe_get(y_w); });
}

int botan_mp_is_zero(const botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](const auto& bn) -> int { return bn.is_zero(); });
}

int botan_mp_is_odd(const botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](const auto& bn) -> int { return bn.is_odd(); });
}

int botan_mp_is_even(const botan_mp_t mp) {
   return BOTAN_FFI_VISIT(mp, [](const auto& bn) -> int { return bn.is_even(); });
}

int botan_mp_cmp(int* result, const botan_mp_t x_w, const botan_mp_t y_w) {
   return BOTAN_FFI_VISIT(x_w, [=](auto& x) { *result = x.cmp(safe_get(y_w)); });
}

int botan_mp_swap(botan_mp_t x_w, botan_mp_t y_w) {
   return BOTAN_FFI_VISIT(x_w, [=](auto& x) { x.swap(safe_get(y_w)); });
}

// Return (base^exponent) % modulus
int botan_mp_powmod(botan_mp_t out, const botan_mp_t base, const botan_mp_t exponent, const botan_mp_t modulus) {
   return BOTAN_FFI_VISIT(
      out, [=](auto& o) { o = Botan::power_mod(safe_get(base), safe_get(exponent), safe_get(modulus)); });
}

int botan_mp_lshift(botan_mp_t out, const botan_mp_t in, size_t shift) {
   return BOTAN_FFI_VISIT(out, [=](auto& o) { o = safe_get(in) << shift; });
}

int botan_mp_rshift(botan_mp_t out, const botan_mp_t in, size_t shift) {
   return BOTAN_FFI_VISIT(out, [=](auto& o) { o = safe_get(in) >> shift; });
}

int botan_mp_mod_inverse(botan_mp_t out, const botan_mp_t in, const botan_mp_t modulus) {
   return BOTAN_FFI_VISIT(out, [=](auto& o) {
      o = Botan::inverse_mod_general(safe_get(in), safe_get(modulus)).value_or(Botan::BigInt::zero());
   });
}

int botan_mp_mod_mul(botan_mp_t out, const botan_mp_t x, const botan_mp_t y, const botan_mp_t modulus) {
   return BOTAN_FFI_VISIT(out, [=](auto& o) {
      auto reducer = Botan::Barrett_Reduction::for_secret_modulus(safe_get(modulus));
      o = reducer.multiply(safe_get(x), safe_get(y));
   });
}

int botan_mp_rand_bits(botan_mp_t rand_out, botan_rng_t rng, size_t bits) {
   return BOTAN_FFI_VISIT(rng, [=](auto& r) { safe_get(rand_out).randomize(r, bits); });
}

int botan_mp_rand_range(botan_mp_t rand_out, botan_rng_t rng, const botan_mp_t lower, const botan_mp_t upper) {
   return BOTAN_FFI_VISIT(
      rng, [=](auto& r) { safe_get(rand_out) = Botan::BigInt::random_integer(r, safe_get(lower), safe_get(upper)); });
}

int botan_mp_gcd(botan_mp_t out, const botan_mp_t x, const botan_mp_t y) {
   return BOTAN_FFI_VISIT(out, [=](auto& o) { o = Botan::gcd(safe_get(x), safe_get(y)); });
}

int botan_mp_is_prime(const botan_mp_t mp, botan_rng_t rng, size_t test_prob) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& n) { return (Botan::is_prime(n, safe_get(rng), test_prob)) ? 1 : 0; });
}

int botan_mp_get_bit(const botan_mp_t mp, size_t bit) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& n) -> int { return n.get_bit(bit); });
}

int botan_mp_set_bit(botan_mp_t mp, size_t bit) {
   return BOTAN_FFI_VISIT(mp, [=](auto& n) { n.set_bit(bit); });
}

int botan_mp_clear_bit(botan_mp_t mp, size_t bit) {
   return BOTAN_FFI_VISIT(mp, [=](auto& n) { n.clear_bit(bit); });
}

int botan_mp_num_bits(const botan_mp_t mp, size_t* bits) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& n) { *bits = n.bits(); });
}

int botan_mp_num_bytes(const botan_mp_t mp, size_t* bytes) {
   return BOTAN_FFI_VISIT(mp, [=](const auto& n) { *bytes = n.bytes(); });
}

// NOLINTEND(misc-misplaced-const)
}

1	/*
2	* (C) 2015,2017 Jack Lloyd
3	* (C) 2017 Ribose Inc
4	*
5	* Botan is released under the Simplified BSD License (see license.txt)
6	*/
7
8	#include <botan/ffi.h>
9
10	#include <botan/assert.h>
11	#include <botan/numthry.h>
12	#include <botan/internal/barrett.h>
13	#include <botan/internal/divide.h>
14	#include <botan/internal/ffi_mp.h>
15	#include <botan/internal/ffi_rng.h>
16	#include <botan/internal/ffi_util.h>
17	#include <botan/internal/mem_utils.h>
18	#include <botan/internal/mod_inv.h>
19
20	extern "C" {
21
22	using namespace Botan_FFI;
23
24	int botan_mp_init(botan_mp_t* mp_out) {	152✔
25	return ffi_guard_thunk(__func__, [=]() -> int {	152✔
26	if(mp_out == nullptr) {	152✔
27	return BOTAN_FFI_ERROR_NULL_POINTER;
28	}
29
30	auto mp = std::make_unique<Botan::BigInt>();	152✔
31	return ffi_new_object(mp_out, std::move(mp));	152✔
32	});	152✔
33	}
34
35	int botan_mp_clear(botan_mp_t mp) {	×
36	return BOTAN_FFI_VISIT(mp, [](auto& bn) { bn.clear(); });	×
37	}
38
39	int botan_mp_set_from_int(botan_mp_t mp, int initial_value) {	2✔
40	return BOTAN_FFI_VISIT(mp, [=](auto& bn) { bn = Botan::BigInt::from_s32(initial_value); });	4✔
41	}
42
43	int botan_mp_set_from_str(botan_mp_t mp, const char* str) {	35✔
44	return BOTAN_FFI_VISIT(mp, [=](auto& bn) { bn = Botan::BigInt(str); });	70✔
45	}
46
47	int botan_mp_set_from_radix_str(botan_mp_t mp, const char* str, size_t radix) {	10✔
48	return BOTAN_FFI_VISIT(mp, [=](auto& bn) {	20✔
49	Botan::BigInt::Base base;
50	if(radix == 10) {
51	base = Botan::BigInt::Decimal;
52	} else if(radix == 16) {
53	base = Botan::BigInt::Hexadecimal;
54	} else {
55	return BOTAN_FFI_ERROR_NOT_IMPLEMENTED;
56	}
57
58	bn = Botan::BigInt::decode(Botan::cstr_as_span_of_bytes(str), base);
59	return BOTAN_FFI_SUCCESS;
60	});
61	}
62
63	// NOLINTBEGIN(misc-misplaced-const)
64
65	int botan_mp_set_from_mp(botan_mp_t dest, const botan_mp_t source) {	4✔
66	return BOTAN_FFI_VISIT(dest, [=](auto& bn) { bn = safe_get(source); });	8✔
67	}
68
69	int botan_mp_is_negative(const botan_mp_t mp) {	10✔
70	return BOTAN_FFI_VISIT(mp, [](const auto& bn) { return bn.is_negative() ? 1 : 0; });	20✔
71	}
72
73	int botan_mp_is_positive(const botan_mp_t mp) {	6✔
74	return BOTAN_FFI_VISIT(mp, [](const auto& bn) { return bn.is_positive() ? 1 : 0; });	12✔
75	}
76
77	int botan_mp_flip_sign(botan_mp_t mp) {	5✔
78	return BOTAN_FFI_VISIT(mp, [](auto& bn) { bn.flip_sign(); });	15✔
79	}
80
81	int botan_mp_from_bin(botan_mp_t mp, const uint8_t bin[], size_t bin_len) {	1✔
82	return BOTAN_FFI_VISIT(mp, [=](auto& bn) { bn._assign_from_bytes({bin, bin_len}); });	2✔
83	}
84
85	int botan_mp_to_hex(const botan_mp_t mp, char* out) {	3✔
86	return BOTAN_FFI_VISIT(mp, [=](const auto& bn) {	6✔
87	const std::string hex = bn.to_hex_string();
88
89	// Check that we are about to write no more than the documented upper bound
90	const size_t upper_bound = 2 * bn.bytes() + 5;
91	BOTAN_ASSERT_NOMSG(hex.size() + 1 <= upper_bound);
92	std::memcpy(out, hex.c_str(), 1 + hex.size());
93	});
94	}
95
96	int botan_mp_view_hex(const botan_mp_t mp, botan_view_ctx ctx, botan_view_str_fn view) {	36✔
97	return BOTAN_FFI_VISIT(mp, [=](const auto& bn) -> int {	108✔
98	const std::string hex = bn.to_hex_string();
99	return invoke_view_callback(view, ctx, hex);
100	});
101	}
102
103	int botan_mp_to_str(const botan_mp_t mp, uint8_t radix, char* out, size_t* out_len) {	14✔
104	return BOTAN_FFI_VISIT(mp, [=](const auto& bn) -> int {	28✔
105	if(radix == 0 \|\| radix == 10) {
106	return write_str_output(out, out_len, bn.to_dec_string());
107	} else if(radix == 16) {
108	return write_str_output(out, out_len, bn.to_hex_string());
109	} else {
110	return BOTAN_FFI_ERROR_BAD_PARAMETER;
111	}
112	});
113	}
114
115	int botan_mp_view_str(const botan_mp_t mp, uint8_t radix, botan_view_ctx ctx, botan_view_str_fn view) {	3✔
116	return BOTAN_FFI_VISIT(mp, [=](const auto& bn) -> int {	9✔
117	if(radix == 10) {
118	return invoke_view_callback(view, ctx, bn.to_dec_string());
119	} else if(radix == 16) {
120	return invoke_view_callback(view, ctx, bn.to_hex_string());
121	} else {
122	return BOTAN_FFI_ERROR_BAD_PARAMETER;
123	}
124	});
125	}
126
127	int botan_mp_to_bin(const botan_mp_t mp, uint8_t vec[]) {	3✔
128	return BOTAN_FFI_VISIT(mp, [=](const auto& bn) { bn.serialize_to(std::span{vec, bn.bytes()}); });	6✔
129	}
130
131	int botan_mp_view_bin(const botan_mp_t mp, botan_view_ctx ctx, botan_view_bin_fn view) {	3✔
132	return BOTAN_FFI_VISIT(mp, [=](const auto& bn) {	15✔
133	const auto bytes = bn.serialize();
134	return invoke_view_callback(view, ctx, bytes);
135	});
136	}
137
138	int botan_mp_to_uint32(const botan_mp_t mp, uint32_t* val) {	5✔
139	if(val == nullptr) {	5✔
140	return BOTAN_FFI_ERROR_NULL_POINTER;
141	}
142	return BOTAN_FFI_VISIT(mp, [=](const auto& bn) { *val = bn.to_u32bit(); });	10✔
143	}
144
145	int botan_mp_destroy(botan_mp_t mp) {	174✔
146	return BOTAN_FFI_CHECKED_DELETE(mp);	174✔
147	}
148
149	int botan_mp_add(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) {	5✔
150	return BOTAN_FFI_VISIT(result, [=](auto& res) {	10✔
151	if(result == x) {
152	res += safe_get(y);
153	} else {
154	res = safe_get(x) + safe_get(y);
155	}
156	});
157	}
158
159	int botan_mp_sub(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) {	1✔
160	return BOTAN_FFI_VISIT(result, [=](auto& res) {	2✔
161	if(result == x) {
162	res -= safe_get(y);
163	} else {
164	res = safe_get(x) - safe_get(y);
165	}
166	});
167	}
168
169	int botan_mp_add_u32(botan_mp_t result, const botan_mp_t x, uint32_t y) {	2✔
170	return BOTAN_FFI_VISIT(result, [=](auto& res) {	4✔
171	if(result == x) {
172	res += static_cast<Botan::word>(y);
173	} else {
174	res = safe_get(x) + static_cast<Botan::word>(y);
175	}
176	});
177	}
178
179	int botan_mp_sub_u32(botan_mp_t result, const botan_mp_t x, uint32_t y) {	1✔
180	return BOTAN_FFI_VISIT(result, [=](auto& res) {	2✔
181	if(result == x) {
182	res -= static_cast<Botan::word>(y);
183	} else {
184	res = safe_get(x) - static_cast<Botan::word>(y);
185	}
186	});
187	}
188
189	int botan_mp_mul(botan_mp_t result, const botan_mp_t x, const botan_mp_t y) {	6✔
190	return BOTAN_FFI_VISIT(result, [=](auto& res) {	12✔
191	if(result == x) {
192	res *= safe_get(y);
193	} else {
194	res = safe_get(x) * safe_get(y);
195	}
196	});
197	}
198
199	int botan_mp_div(botan_mp_t quotient, botan_mp_t remainder, const botan_mp_t x, const botan_mp_t y) {	2✔
200	return BOTAN_FFI_VISIT(quotient, [=](auto& q) {	4✔
201	Botan::BigInt r;
202	Botan::vartime_divide(safe_get(x), safe_get(y), q, r);
203	safe_get(remainder) = r;
204	});
205	}
206
207	int botan_mp_equal(const botan_mp_t x_w, const botan_mp_t y_w) {	23✔
208	return BOTAN_FFI_VISIT(x_w, [=](const auto& x) -> int { return x == safe_get(y_w); });	46✔
209	}
210
211	int botan_mp_is_zero(const botan_mp_t mp) {	3✔
212	return BOTAN_FFI_VISIT(mp, [](const auto& bn) -> int { return bn.is_zero(); });	6✔
213	}
214
215	int botan_mp_is_odd(const botan_mp_t mp) {	2✔
216	return BOTAN_FFI_VISIT(mp, [](const auto& bn) -> int { return bn.is_odd(); });	5✔
217	}
218
219	int botan_mp_is_even(const botan_mp_t mp) {	2✔
220	return BOTAN_FFI_VISIT(mp, [](const auto& bn) -> int { return bn.is_even(); });	5✔
221	}
222
223	int botan_mp_cmp(int* result, const botan_mp_t x_w, const botan_mp_t y_w) {	44✔
224	return BOTAN_FFI_VISIT(x_w, [=](auto& x) { *result = x.cmp(safe_get(y_w)); });	88✔
225	}
226
227	int botan_mp_swap(botan_mp_t x_w, botan_mp_t y_w) {	×
228	return BOTAN_FFI_VISIT(x_w, [=](auto& x) { x.swap(safe_get(y_w)); });	×
229	}
230
231	// Return (base^exponent) % modulus
232	int botan_mp_powmod(botan_mp_t out, const botan_mp_t base, const botan_mp_t exponent, const botan_mp_t modulus) {	2✔
233	return BOTAN_FFI_VISIT(	4✔
234	out, [=](auto& o) { o = Botan::power_mod(safe_get(base), safe_get(exponent), safe_get(modulus)); });
235	}
236
237	int botan_mp_lshift(botan_mp_t out, const botan_mp_t in, size_t shift) {	3✔
238	return BOTAN_FFI_VISIT(out, [=](auto& o) { o = safe_get(in) << shift; });	6✔
239	}
240
241	int botan_mp_rshift(botan_mp_t out, const botan_mp_t in, size_t shift) {	4✔
242	return BOTAN_FFI_VISIT(out, [=](auto& o) { o = safe_get(in) >> shift; });	8✔
243	}
244
245	int botan_mp_mod_inverse(botan_mp_t out, const botan_mp_t in, const botan_mp_t modulus) {	2✔
246	return BOTAN_FFI_VISIT(out, [=](auto& o) {	4✔
247	o = Botan::inverse_mod_general(safe_get(in), safe_get(modulus)).value_or(Botan::BigInt::zero());
248	});
249	}
250
251	int botan_mp_mod_mul(botan_mp_t out, const botan_mp_t x, const botan_mp_t y, const botan_mp_t modulus) {	2✔
252	return BOTAN_FFI_VISIT(out, [=](auto& o) {	6✔
253	auto reducer = Botan::Barrett_Reduction::for_secret_modulus(safe_get(modulus));
254	o = reducer.multiply(safe_get(x), safe_get(y));
255	});
256	}
257
258	int botan_mp_rand_bits(botan_mp_t rand_out, botan_rng_t rng, size_t bits) {	2✔
259	return BOTAN_FFI_VISIT(rng, [=](auto& r) { safe_get(rand_out).randomize(r, bits); });	4✔
260	}
261
262	int botan_mp_rand_range(botan_mp_t rand_out, botan_rng_t rng, const botan_mp_t lower, const botan_mp_t upper) {	10✔
263	return BOTAN_FFI_VISIT(	30✔
264	rng, [=](auto& r) { safe_get(rand_out) = Botan::BigInt::random_integer(r, safe_get(lower), safe_get(upper)); });
265	}
266
267	int botan_mp_gcd(botan_mp_t out, const botan_mp_t x, const botan_mp_t y) {	4✔
268	return BOTAN_FFI_VISIT(out, [=](auto& o) { o = Botan::gcd(safe_get(x), safe_get(y)); });	8✔
269	}
270
271	int botan_mp_is_prime(const botan_mp_t mp, botan_rng_t rng, size_t test_prob) {	5✔
272	return BOTAN_FFI_VISIT(mp, [=](const auto& n) { return (Botan::is_prime(n, safe_get(rng), test_prob)) ? 1 : 0; });	10✔
273	}
274
275	int botan_mp_get_bit(const botan_mp_t mp, size_t bit) {	6✔
276	return BOTAN_FFI_VISIT(mp, [=](const auto& n) -> int { return n.get_bit(bit); });	12✔
277	}
278
279	int botan_mp_set_bit(botan_mp_t mp, size_t bit) {	2✔
280	return BOTAN_FFI_VISIT(mp, [=](auto& n) { n.set_bit(bit); });	4✔
281	}
282
283	int botan_mp_clear_bit(botan_mp_t mp, size_t bit) {	2✔
284	return BOTAN_FFI_VISIT(mp, [=](auto& n) { n.clear_bit(bit); });	4✔
285	}
286
287	int botan_mp_num_bits(const botan_mp_t mp, size_t* bits) {	7✔
288	return BOTAN_FFI_VISIT(mp, [=](const auto& n) { *bits = n.bits(); });	14✔
289	}
290
291	int botan_mp_num_bytes(const botan_mp_t mp, size_t* bytes) {	10✔
292	return BOTAN_FFI_VISIT(mp, [=](const auto& n) { *bytes = n.bytes(); });	20✔
293	}
294
295	// NOLINTEND(misc-misplaced-const)
296	}

randombit / botan / 21850311256

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