cpython/Include/internal/pycore_bytesobject.h

53 lines
1.4 KiB
C

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