carson radtke 898db79600

improve performance of span_iterator w/ clang ...

Issue: #1165

Before this PR, the range-for loop was ~3300x slower. After this PR, it
is ~1.005x slower

The clang optimizer is very good at optimizing `current != end`, so
we changed to this idiom. This moves the Expects assertion into the
constructor instead of on the hot-path which is called whenever either
operator++ or operator* is called.

Note: The codegen for the assertion is still a missed optimization,
but less worrisome as it only happens once per iterator.

Note: benchmarks on M1 Macbook Pro w/ Apple Clang 16.0.0

2024-11-09 14:30:54 -06:00

..

algorithm

quoted form of #include when GSL includes GSL files (#1030)

2022-01-31 13:06:42 -08:00

assert

Update Clang GSL_SUPPRESS to stringize parameter instead of using fixed string literal. (#1133)

2023-09-11 10:52:30 -07:00

byte

Test only __cpp_lib_byte, drop _HAS_STD_BYTE. (#1145)

2024-02-26 13:22:20 -08:00

gsl

Added the IWYU pragma export (#1154)

2024-10-15 17:26:45 -05:00

narrow

Delete the useless 'noexcept(false)' (#1152)

2024-10-14 15:30:40 -05:00

pointers

Remove unused headers from gsl/pointers (#1153)

2024-10-14 15:15:46 -05:00

span

improve performance of span_iterator w/ clang

2024-11-09 14:30:54 -06:00

span_ext

Deprecate the Ptr make_span overloads (#1113)

2023-05-22 10:48:41 -07:00

string_span

Deprecate <gsl/string_span> and replace with <gsl/zstring> (#1125)

2023-06-28 10:48:23 -07:00

util

Fix gcc build problem (#1149)

2024-10-11 19:46:21 -05:00

zstring

Deprecate <gsl/string_span> and replace with <gsl/zstring> (#1125)

2023-06-28 10:48:23 -07:00