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Export of internal Abseil changes

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bc74316103bbda92541896f588f71c9d45bea768 by Gennadiy Civil <misterg@google.com>:

Manually fixing the BUILD.bazel files

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d41bf9ea916a0dc8c69e6ba77f58f9d55649880e by Shaindel Schwartz <shaindel@google.com>:

Minor cleanup to miscellaneous BUILD files.

PiperOrigin-RevId: 266420157

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08a8dc2cbd48d27e1115809f9ca8d178551cd66e by Gennadiy Civil <misterg@google.com>:

Internal Change
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Internal Change
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8617d58fde1ece40e4aa79eaa5e250b42d19835f by Shaindel Schwartz <shaindel@google.com>:

Internal Change
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Internal Change
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3a0fc7d48bdc70c4f7dffc219578693dea84eb2d by Derek Mauro <dmauro@google.com>:

Implement absl::string_view::at()

PiperOrigin-RevId: 266024644

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ba53a9da8ede8fe7b8971eaab6b3a1fa34763ff6 by Andy Soffer <asoffer@google.com>:

Remove forcing of optimization levels in MSVC.

PiperOrigin-RevId: 265927588

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df86f2046b54bba7da2e345040806d43470de5c0 by Shaindel Schwartz <shaindel@google.com>:

Internal change

PiperOrigin-RevId: 265811077

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e2e3a6e8194363e7c6377672560c806d638a7c74 by Derek Mauro <dmauro@google.com>:

Remove ABI unsafe mixed exceptions mode compilation.
Testing will now be done on CI with the exceptions flag set globally.

PiperOrigin-RevId: 265796079
GitOrigin-RevId: bc74316103bbda92541896f588f71c9d45bea768
Change-Id: Ibccd00f4829520454aa55c4f55c7cb2dc9c6b65a
This commit is contained in:
Abseil Team 2019-08-30 15:03:24 -04:00 • committed by Gennadiy Civil
parent a0d1e098c2
commit 1948f6f967
31 changed files with 132 additions and 304 deletions
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14
absl/strings/string_view.h
View file

@ -269,10 +269,22 @@ class string_view {
// string_view::operator[]
//
// Returns the ith element of an `string_view` using the array operator.
// Returns the ith element of the `string_view` using the array operator.
// Note that this operator does not perform any bounds checking.
constexpr const_reference operator[](size_type i) const { return ptr_[i]; }
// string_view::at()
//
// Returns the ith element of the `string_view`. Bounds checking is performed,
// and an exception of type `std::out_of_range` will be thrown on invalid
// access.
constexpr const_reference at(size_type i) const {
return ABSL_PREDICT_TRUE(i < size())
? ptr_[i]
: (base_internal::ThrowStdOutOfRange("absl::string_view::at"),
ptr_[i]);
}
// string_view::front()
//
// Returns the first element of a `string_view`.