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| author | George Kadianakis <desnacked@riseup.net> | 2015-01-15 14:36:24 +0000 |
|---|---|---|
| committer | George Kadianakis <desnacked@riseup.net> | 2015-01-15 14:43:58 +0000 |
| commit | 45bc5a07434376c0d801a547b38893d85a515b49 (patch) | |
| tree | 3569b85366fbfabc6db75a3df054990e13a5ea59 /src/common/util.h | |
| parent | 3668a4126e0c2502a77c2ba5d7885add489a964a (diff) | |
| download | tor-45bc5a07434376c0d801a547b38893d85a515b49.tar.gz tor-45bc5a07434376c0d801a547b38893d85a515b49.zip | |
Restrict sample values of the Laplace distribution to int64_t.
This helps avoid undefined behavior from casting big double values to
int64_t. Fixes #14090.
Diffstat (limited to 'src/common/util.h')
| -rw-r--r-- | src/common/util.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/common/util.h b/src/common/util.h index 1b8fc74db5..89c140032a 100644 --- a/src/common/util.h +++ b/src/common/util.h @@ -173,7 +173,7 @@ unsigned round_to_next_multiple_of(unsigned number, unsigned divisor); uint32_t round_uint32_to_next_multiple_of(uint32_t number, uint32_t divisor); uint64_t round_uint64_to_next_multiple_of(uint64_t number, uint64_t divisor); int64_t round_int64_to_next_multiple_of(int64_t number, int64_t divisor); -double sample_laplace_distribution(double mu, double b, double p); +int64_t sample_laplace_distribution(double mu, double b, double p); int64_t add_laplace_noise(int64_t signal, double random, double delta_f, double epsilon); int n_bits_set_u8(uint8_t v); |