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https://github.com/python/cpython
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850687df47
Use it where appropriate: the repeat functions of `array.array`, `bytes`, `bytearray`, and `str`.
53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
#ifndef Py_INTERNAL_BYTESOBJECT_H
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#define Py_INTERNAL_BYTESOBJECT_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef Py_BUILD_CORE
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# error "this header requires Py_BUILD_CORE define"
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#endif
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/* runtime lifecycle */
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extern PyStatus _PyBytes_InitTypes(PyInterpreterState *);
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/* Substring Search.
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Returns the index of the first occurrence of
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a substring ("needle") in a larger text ("haystack").
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If the needle is not found, return -1.
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If the needle is found, add offset to the index.
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*/
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PyAPI_FUNC(Py_ssize_t)
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_PyBytes_Find(const char *haystack, Py_ssize_t len_haystack,
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const char *needle, Py_ssize_t len_needle,
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Py_ssize_t offset);
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/* Same as above, but search right-to-left */
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PyAPI_FUNC(Py_ssize_t)
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_PyBytes_ReverseFind(const char *haystack, Py_ssize_t len_haystack,
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const char *needle, Py_ssize_t len_needle,
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Py_ssize_t offset);
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/** Helper function to implement the repeat and inplace repeat methods on a buffer
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*
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* len_dest is assumed to be an integer multiple of len_src.
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* If src equals dest, then assume the operation is inplace.
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*
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* This method repeately doubles the number of bytes copied to reduce
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* the number of invocations of memcpy.
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*/
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PyAPI_FUNC(void)
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_PyBytes_Repeat(char* dest, Py_ssize_t len_dest,
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const char* src, Py_ssize_t len_src);
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_INTERNAL_BYTESOBJECT_H */
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