kevacoin

7110 Commits

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Tree: d752ba86c1

Commit Graph

Author	SHA1	Message	Date
jtimon	cbd22a50c4	Move CScript class and dependencies to script/script	10 years ago
jtimon	86dbeea2cd	Rename script.h/.cpp to scriptutils.h/.cpp (plus remove duplicated includes)	10 years ago
Cory Fields	b1fdd5475d	script: Add test for CScriptNum Because this class replaces some usages of CBigNum, tests have been added to verify that they function the same way. The only difference in their usage is the handling of out-of-range numbers. While operands are constrained to [-0x7FFFFFFF,0x7FFFFFFF], the results may overflow. The overflowing result is technically unbounded, but in practice it can be no bigger than the result of an operation on two operands. This implementation limits them to the size of an int64. CBigNum was unaware of this constraint, so it allowed for unbounded results, which were then checked before use. CScriptNum asserts if an arithmetic operation will overflow an int64_t, since scripts are not able to reach those numbers anyway. Additionally, CScriptNum will throw an exception when constructed from a vector containing more than 4 bytes This mimics the previous CastToBigNum behavior.	11 years ago

Author

SHA1

Message

Date

jtimon

cbd22a50c4

Move CScript class and dependencies to script/script

10 years ago

jtimon

86dbeea2cd

Rename script.h/.cpp to scriptutils.h/.cpp (plus remove duplicated includes)

10 years ago

Cory Fields

b1fdd5475d

script: Add test for CScriptNum

Because this class replaces some usages of CBigNum, tests have been added to
verify that they function the same way. The only difference in their usage is
the handling of out-of-range numbers.

While operands are constrained to [-0x7FFFFFFF,0x7FFFFFFF], the results may
overflow. The overflowing result is technically unbounded, but in practice
it can be no bigger than the result of an operation on two operands. This
implementation limits them to the size of an int64.

CBigNum was unaware of this constraint, so it allowed for unbounded results,
which were then checked before use. CScriptNum asserts if an arithmetic
operation will overflow an int64_t, since scripts are not able to reach those
numbers anyway. Additionally, CScriptNum will throw an exception when
constructed from a vector containing more than 4 bytes This mimics the previous
CastToBigNum behavior.

11 years ago

3 Commits (d752ba86c1872f64a4641cf77008826d32bde65f)