Add upper case functions to zend_operators.c and use them #7521
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nikic
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Sep 28, 2021
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| static const unsigned char tolower_map[256] = { | ||
| #if __SSE2__ | ||
| #define HAVE_BLOCKCONV |
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Where does the BLOCKCONV prefix come from?
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I am introducing it here, for block (case) conversion. Feel free to suggest a better name.
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Add a family of upper case conversion functions to zend_operators.c, by analogy with the lower case functions. Move the single-character conversion macros to the header so that they can be used as a locale-independent replacement for tolower() and toupper(). Factor out the ugly bits of the SSE2 case conversion so that the four functions that use it are easy to read and processor-independent.
Use the new ASCII upper case functions in ext/xml, ext/pdo_dblib and as an optimization for strtoupper() when the locale is "C".
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nikic
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Sep 29, 2021
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Add a family of upper case conversion functions to zend_operators.c,
by analogy with the lower case functions.
Move the single-character conversion macros to the header so that they
can be used as a locale-independent replacement for tolower() and
toupper().
Factor out the ugly bits of the SSE2 case conversion so that the four
functions that use it are easy to read and processor-independent.
Add SSE-oriented strtolower/strtoupper tests.
Use the new ASCII upper case functions in ext/xml, ext/pdo_dblib and as
an optimization for strtoupper() when the locale is "C".