catch3/src/catch2/matchers/catch_matchers_string.cpp, branch 0.1.0 Progmasoft Catch3: an independently maintained C++17 test framework with a parallel runner, property checks, snapshots and structured results. Improve String matcher handling of case sensitivity 2026-08-24T13:11:48+00:00 Martin Hořeňovský 2026-08-24T13:11:44+00:00 fc5bc1fa8b57326b5bc8eaa189b3534b99913d07 The old implementation of String matchers worked by making a, potentially lower-cased, copy of both the constructor arg, and the arg to `match` calls. The new implementation does not make copies, and instead does per-character lowering if needed. This is a win in **most** cases, with two exceptions: 1) Case-insensitive `Equals` between long strings. The old implementation is easy to autovectorize by the compiler, which wins over the extra copy with sufficiently long inputs. 2) Case-insensitive `ContainsSubstring` with inputs that trigger the worst case complexity of O(m*n) of the naive implementation. The latter is fixable with some elbow grease by implementing a proper string search algorithm, but the former is a cost we have to live with. 
The old implementation of String matchers worked by making a, potentially
lower-cased, copy of both the constructor arg, and the arg to `match` calls.

The new implementation does not make copies, and instead does per-character
lowering if needed. This is a win in **most** cases, with two exceptions:

1) Case-insensitive `Equals` between long strings. The old implementation
   is easy to autovectorize by the compiler, which wins over the extra copy
   with sufficiently long inputs.
2) Case-insensitive `ContainsSubstring` with inputs that trigger the worst
   case complexity of O(m*n) of the naive implementation.

The latter is fixable with some elbow grease by implementing a proper
string search algorithm, but the former is a cost we have to live with.
Fix references to license file 2022-10-28T09:30:15+00:00 Lars Toenning 2022-10-28T09:22:53+00:00 f1084fb30990fe40c8f5b70034970c7eb4e1da72 The license file was renamed with 6a502cc2f5fedd59b3495b58708f0d6d987ed9e1 
The license file was renamed with 6a502cc2f5fedd59b3495b58708f0d6d987ed9e1
Use StringRefs for operation name in StringMatcherBase 2022-04-11T08:58:45+00:00 Martin Hořeňovský 2022-04-11T08:58:45+00:00 195a6ac94110fbda140ae4318a2338c9e2512804 






Demote some single character strings into plain chars
2021-10-03T08:37:30+00:00

Martin Hořeňovský

2021-10-03T08:09:10+00:00

928e198ef289c2c259ad0d6ee2b3741c3a2b185a












Rename Contains string matcher builder to ContainsSubstring
2021-09-27T19:28:33+00:00

Martin Hořeňovský

2021-09-23T21:28:59+00:00

426954032f263754d2fff4cffce8552e7371965e

The problem with the old name was that it collided with the
range matcher `Contains`, and it was not really possible to
disambiguate them just with argument types.

Closes #2131





The problem with the old name was that it collided with the
range matcher `Contains`, and it was not really possible to
disambiguate them just with argument types.

Closes #2131







Replace uses of std::move and std::forward with macros
2021-08-16T14:22:19+00:00

Martin Hořeňovský

2021-08-13T12:16:30+00:00

d2ee7100d26128b3956571cc802f3a52c9b9aea8

This improves the SelfTest build times by about 3% (measured
with Clang 10 on random Linux box I had lying around).





This improves the SelfTest build times by about 3% (measured
with Clang 10 on random Linux box I had lying around).







Add standardized copyright notice + SPDX identifier to source files
2020-08-30T13:43:45+00:00

Martin Hořeňovský

2020-08-30T13:43:45+00:00

90aeffb97d6942d16f75a56b11e10fc0b010995a

This should also be done for test files, but that has lower priority.





This should also be done for test files, but that has lower priority.







Remove the rest of old-style copyright headers
2020-08-30T12:45:05+00:00

Martin Hořeňovský

2020-08-30T12:41:39+00:00

c2453c2bf8278100386f7b97029fe5cc47a77755












Use StringRef for CasedString::caseSensitivitySuffix return type
2020-08-18T19:02:34+00:00

Martin Hořeňovský

2020-08-18T12:03:37+00:00

2e480b6e560ad8412337b49b6327c7ac303bfb01












Turn CaseSensitive into proper enum class
2020-08-18T19:02:30+00:00

Martin Hořeňovský

2020-08-18T11:44:37+00:00

e418e75c74274354b4c2c7597d919929426d89c8