regex_t(3type) regex_t(3type) NAME regex_t, regmatch_t, regoff_t - regular expression matching LIBRARY Standard C library (libc) SYNOPSIS #include <regex.h> typedef struct { size_t re_nsub; /* Number of parenthesized subexpressions */ } regex_t; typedef struct { regoff_t rm_so; /* Byte offset from start of string to start of substring */ regoff_t rm_eo; /* Byte offset from start of string to the first character after the end of substring */ } regmatch_t; typedef /* ... */ regoff_t; DESCRIPTION regex_t This is a structure type used in regular expression matching. It holds a compiled regular expression, compiled with reg- comp(3). regmatch_t This is a structure type used in regular expression matching. regoff_t It is a signed integer type capable of storing the largest value that can be stored in either an ptrdiff_t type or a ssize_t type. VERSIONS Prior to POSIX.1-2008, the type was capable of storing the largest value that can be stored in either an off_t type or a ssize_t type. STANDARDS POSIX.1-2001 and later. SEE ALSO regex(3) Linux man-pages 6.03 2022-10-30 regex_t(3type)
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