diff options
Diffstat (limited to 'src/string/str')
| -rw-r--r-- | src/string/str/stpncpy.c | 46 | ||||
| -rw-r--r-- | src/string/str/stpnmove.c | 47 | ||||
| -rw-r--r-- | src/string/str/strcncpy.c | 54 | ||||
| -rw-r--r-- | src/string/str/strcnmove.c | 54 | ||||
| -rw-r--r-- | src/string/str/strncasecmp.c | 50 | ||||
| -rw-r--r-- | src/string/str/strncasestr.c | 38 | ||||
| -rw-r--r-- | src/string/str/strncat.c | 43 | ||||
| -rw-r--r-- | src/string/str/strncmp.c | 39 | ||||
| -rw-r--r-- | src/string/str/strncpy.c | 43 | ||||
| -rw-r--r-- | src/string/str/strndup.c | 43 | ||||
| -rw-r--r-- | src/string/str/strnlen.c | 36 | ||||
| -rw-r--r-- | src/string/str/strnmove.c | 45 | ||||
| -rw-r--r-- | src/string/str/strnstr.c | 39 | ||||
| -rw-r--r-- | src/string/str/strstrncpy.c | 55 | ||||
| -rw-r--r-- | src/string/str/strstrnmove.c | 54 |
15 files changed, 0 insertions, 686 deletions
diff --git a/src/string/str/stpncpy.c b/src/string/str/stpncpy.c deleted file mode 100644 index 876eaf0..0000000 --- a/src/string/str/stpncpy.c +++ /dev/null @@ -1,46 +0,0 @@ -/** - * slibc — Yet another C library - * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ -#include <string.h> - - - -/** - * Copy a memory segment to another, non-overlapping, segment, - * stop when a NUL byte is encountered. - * - * This is a GNU extension. - * - * @param whither The destination memory segment. - * @param whence The source memory segment. - * @param maxlen The maximum number of bytes to copy. - * NOTE that if the resulting string at least this - * long, no NUL byte will be written to `whither'. - * On the otherhand, if the resultnig string is - * shorter, `whither` will be filled with NUL bytes - * until this amount of bytes have been written. - * @return `whither` plus the number of written bytes, - * excluding NUL bytes, is returned. - */ -char* stpncpy(char* restrict whither, const char* restrict whence, size_t maxlen) -{ - size_t n = strnlen(whence, maxlen); - memcpy(whither, whence, n); - memset(whither, 0, maxlen - n); - return whither + n; -} - diff --git a/src/string/str/stpnmove.c b/src/string/str/stpnmove.c deleted file mode 100644 index a0a0de9..0000000 --- a/src/string/str/stpnmove.c +++ /dev/null @@ -1,47 +0,0 @@ -/** - * slibc — Yet another C library - * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ -#include <string.h> - - - -/** - * Copy a memory segment to another, possibly overlapping, segment, - * stop when a NUL byte is encountered. - * - * This is a slibc extension added for completeness. - * It is only available if GNU extensions are available. - * - * @param whither The destination memory segment. - * @param whence The source memory segment. - * @param maxlen The maximum number of bytes to copy. - * NOTE that if the resulting string at least this - * long, no NUL byte will be written to `whither'. - * On the otherhand, if the resultnig string is - * shorter, `whither` will be filled with NUL bytes - * until this amount of bytes have been written. - * @return `whither` plus the number of written bytes, - * excluding NUL bytes, is returned. - */ -char* stpnmove(char* whither, const char* whence, size_t maxlen) -{ - size_t n = strnlen(whence, maxlen); - memmove(whither, whence, n); - memset(whither, 0, maxlen - n); - return whither + n; -} - diff --git a/src/string/str/strcncpy.c b/src/string/str/strcncpy.c deleted file mode 100644 index 5036c7d..0000000 --- a/src/string/str/strcncpy.c +++ /dev/null @@ -1,54 +0,0 @@ -/** - * slibc — Yet another C library - * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ -#include <string.h> - - - -/** - * Copy a memory segment to another, non-overlapping, segment, - * stop when a NUL byte or a specified byte is encountered. - * - * This is a slibc extension added for completeness. - * It is only available if GNU extensions are available. - * - * @param whither The destination memory segment. - * @param whence The source memory segment. - * @param c The stop byte. - * @param maxlen The maximum number of bytes to copy. - * NOTE that if the resulting string at least this - * long, no NUL byte will be written to `whither'. - * On the otherhand, if the resultnig string is - * shorter, `whither` will be filled with NUL bytes - * until this amount of bytes have been written. - * @return `NULL` if `c` was not encountered, otherwise - * the position of `c` translated to `whither`, - * that is, the address of `whither` plus the - * number of copied characters; the address of - * one character passed the last written non-NUL - * character. - */ -char* strcncpy(char* restrict whither, const char* restrict whence, int c, size_t maxlen) -{ - const char* stop = memchr(whence, c, maxlen); - size_t n = stop == NULL ? strnlen(whence, maxlen) : (size_t)(stop - whence); - char* r = stop == NULL ? NULL : (whither + n); - memcpy(whither, whence, n); - memset(whither, 0, maxlen - n); - return r; -} - diff --git a/src/string/str/strcnmove.c b/src/string/str/strcnmove.c deleted file mode 100644 index f418e92..0000000 --- a/src/string/str/strcnmove.c +++ /dev/null @@ -1,54 +0,0 @@ -/** - * slibc — Yet another C library - * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ -#include <string.h> - - - -/** - * Copy a memory segment to another, possibly overlapping, segment, - * stop when a NUL byte or a specified byte is encountered. - * - * This is a slibc extension added for completeness. - * It is only available if GNU extensions are available. - * - * @param whither The destination memory segment. - * @param whence The source memory segment. - * @param c The stop byte. - * @param maxlen The maximum number of bytes to copy. - * NOTE that if the resulting string at least this - * long, no NUL byte will be written to `whither'. - * On the otherhand, if the resultnig string is - * shorter, `whither` will be filled with NUL bytes - * until this amount of bytes have been written. - * @return `NULL` if `c` was not encountered, otherwise - * the position of `c` translated to `whither`, - * that is, the address of `whither` plus the - * number of copied characters; the address of - * one character passed the last written non-NUL - * character. - */ -char* strcnmove(char* whither, const char* whence, int c, size_t maxlen) -{ - const char* stop = memchr(whence, c, maxlen); - size_t n = stop == NULL ? strnlen(whence, maxlen) : (size_t)(stop - whence); - char* r = stop == NULL ? NULL : (whither + n); - memmove(whither, whence, n); - memset(whither, 0, maxlen - n); - return r; -} - diff --git a/src/string/str/strncasecmp.c b/src/string/str/strncasecmp.c deleted file mode 100644 index 919ff36..0000000 --- a/src/string/str/strncasecmp.c +++ /dev/null @@ -1,50 +0,0 @@ -/** - * slibc — Yet another C library - * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ -#include <string.h> -#include <ctype.h> - - - -/** - * Compare two strings alphabetically in a case insensitive manner. - * Be aware, only ASCII characters are case insensitive, non-ASCII - * characters are case sensitive. - * - * @param a A negative value is returned if this is the lesser. - * @param b A positive value is returned if this is the lesser. - * @param length The maximum number of characters to compare. - * @return Zero is returned if `a` and `b` are equal, otherwise, - * see the specifications for `a` and `b`. - */ -int strncasecmp(const char* a, const char* b, size_t length) -{ - int c1, c2; - for (; length--; a++, b++) - if (*a != *b) - { - c1 = isalpha(*a) ? tolower(*a) : (int)*a; - c2 = isalpha(*b) ? tolower(*b) : (int)*b; - if ((c1 -= c2)) - return c1; - } - else if (!*a && !*b) return 0; - else if (!*a) return -1; - else if (!*b) return +1; - return 0; -} - diff --git a/src/string/str/strncasestr.c b/src/string/str/strncasestr.c deleted file mode 100644 index e95dc4b..0000000 --- a/src/string/str/strncasestr.c +++ /dev/null @@ -1,38 +0,0 @@ -/** - * slibc — Yet another C library - * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ -#include <string.h> - - - -/** - * Finds the first occurrence of a substring. - * This search is case insensitive. - * - * This is a slibc extension added for completeness. - * - * @param haystack The string to search. - * @param needle The sought after substring. - * @param maxlen The maximum number of character to search. - * @return Pointer to the first occurrence of the - * substring, `NULL` if not found. - */ -char* (strncasestr)(const char* haystack, const char* needle, size_t maxlen) -{ - return (memcasemem)(haystack, strnlen(haystack, maxlen), needle, strlen(needle)); -} - diff --git a/src/string/str/strncat.c b/src/string/str/strncat.c deleted file mode 100644 index e7db0f2..0000000 --- a/src/string/str/strncat.c +++ /dev/null @@ -1,43 +0,0 @@ -/** - * slibc — Yet another C library - * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ -#include <string.h> - - - -/** - * Concatenate a string to the end of another string. - * The resulting strings must not overlap with the appended string. - * - * The use of this function is often a really bad idea. - * - * @param whither The string to extend. - * @param whence The string to append. - * @param maxlen The maximum number of bytes to copy. - * NOTE that if the resulting string at least this - * long, no NUL byte will be written to `whither'. - * On the otherhand, if the resultnig string is - * shorter, `whither` will be filled with NUL bytes - * until this amount of bytes have been written. - * @return `whither` is returned. - */ -char* strncat(char* restrict whither, const char* restrict whence, size_t maxlen) -{ - strncpy(whither + strlen(whither), whence, maxlen); - return whither; -} - diff --git a/src/string/str/strncmp.c b/src/string/str/strncmp.c deleted file mode 100644 index daf5be5..0000000 --- a/src/string/str/strncmp.c +++ /dev/null @@ -1,39 +0,0 @@ -/** - * slibc — Yet another C library - * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ -#include <string.h> - - - -/** - * Compare two strings alphabetically in a case sensitive manner. - * - * @param a A negative value is returned if this is the lesser. - * @param b A positive value is returned if this is the lesser. - * @param length The maximum number of characters to compare. - * @return Zero is returned if `a` and `b` are equal, otherwise, - * see the specifications for `a` and `b`. - */ -int strncmp(const char* a, const char* b, size_t length) -{ - size_t n = strnlen(a, length); - size_t m = strnlen(b, length); - int r = memcmp(a, b, (n < m ? n : m)); - return r ? r : n == m ? 0 : n < m ? -1 : +1; -} - - diff --git a/src/string/str/strncpy.c b/src/string/str/strncpy.c deleted file mode 100644 index f3eba84..0000000 --- a/src/string/str/strncpy.c +++ /dev/null @@ -1,43 +0,0 @@ -/** - * slibc — Yet another C library - * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ -#include <string.h> - - - -/** - * Copy a memory segment to another, non-overlapping, segment, - * stop when a NUL byte is encountered. - * - * @param whither The destination memory segment. - * @param whence The source memory segment. - * @param maxlen The maximum number of bytes to copy. - * NOTE that if the resulting string at least this - * long, no NUL byte will be written to `whither'. - * On the otherhand, if the resultnig string is - * shorter, `whither` will be filled with NUL bytes - * until this amount of bytes have been written. - * @return `whither` is returned. - */ -char* strncpy(char* restrict whither, const char* restrict whence, size_t maxlen) -{ - size_t n = strnlen(whence, maxlen); - memcpy(whither, whence, n); - memset(whither, 0, maxlen - n); - return whither; -} - diff --git a/src/string/str/strndup.c b/src/string/str/strndup.c deleted file mode 100644 index ca3b3f0..0000000 --- a/src/string/str/strndup.c +++ /dev/null @@ -1,43 +0,0 @@ -/** - * slibc — Yet another C library - * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ -#include <string.h> -#include <stdlib.h> - - - -/** - * Duplicate a string. - * - * This is a GNU extension. - * - * @param string The string to duplicate. - * @param maxlen Truncate the string to this length, if it is longer. - * A NUL byte is guaranteed to always be written - * upon successful completion. - * @return The new string. `NULL` is returned on error - * and `errno` is set to indicate the error. - * - * @throws ENOMEM The process could not allocate sufficient amount of memory. - */ -char* strndup(const char* string, size_t maxlen) -{ - size_t n = strnlen(string, maxlen) + 1; - char* r = malloc(n * sizeof(char)); - return r == NULL ? NULL : memcpy(r, string, n * sizeof(char)); -} - diff --git a/src/string/str/strnlen.c b/src/string/str/strnlen.c deleted file mode 100644 index 5473682..0000000 --- a/src/string/str/strnlen.c +++ /dev/null @@ -1,36 +0,0 @@ -/** - * slibc — Yet another C library - * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ -#include <string.h> - - - -/** - * Variant of `strlen` that only inspects the - * beginning of a string. - * - * @param str The string. - * @param maxlen The number of bytes to inspect, at most. - * @return The number of bytes before, the first NUL byte. - * `maxlen` if no NUL byte was found. - */ -size_t strnlen(const char* str, size_t maxlen) -{ - const char* end = memchr(str, 0, maxlen); - return end == NULL ? maxlen : (size_t)(end - str); -} - diff --git a/src/string/str/strnmove.c b/src/string/str/strnmove.c deleted file mode 100644 index a8b3224..0000000 --- a/src/string/str/strnmove.c +++ /dev/null @@ -1,45 +0,0 @@ -/** - * slibc — Yet another C library - * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ -#include <string.h> - - - -/** - * Copy a memory segment to another, possibly overlapping, segment, - * stop when a NUL byte is encountered. - * - * This is a slibc extension added for completeness. - * - * @param whither The destination memory segment. - * @param whence The source memory segment. - * @param maxlen The maximum number of bytes to copy. - * NOTE that if the resulting string at least this - * long, no NUL byte will be written to `whither'. - * On the otherhand, if the resultnig string is - * shorter, `whither` will be filled with NUL bytes - * until this amount of bytes have been written. - * @return `whither` is returned. - */ -char* strnmove(char* whither, const char* whence, size_t maxlen) -{ - size_t n = strnlen(whence, maxlen); - memmove(whither, whence, n); - memset(whither, 0, maxlen - n); - return whither; -} - diff --git a/src/string/str/strnstr.c b/src/string/str/strnstr.c deleted file mode 100644 index 8db61ac..0000000 --- a/src/string/str/strnstr.c +++ /dev/null @@ -1,39 +0,0 @@ -/** - * slibc — Yet another C library - * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ -#include <string.h> - - - -/** - * Finds the first occurrence of a substring. - * This search is case sensitive. - * - * This is a slibc extension added for because it was useful - * in implementing slibc itself. - * - * @param haystack The string to search. - * @param needle The sought after substring. - * @param maxlen The maximum number of character to search. - * @return Pointer to the first occurrence of the - * substring, `NULL` if not found. - */ -char* (strnstr)(const char* haystack, const char* needle, size_t maxlen) -{ - return (memmem)(haystack, strnlen(haystack, maxlen), needle, strlen(needle)); -} - diff --git a/src/string/str/strstrncpy.c b/src/string/str/strstrncpy.c deleted file mode 100644 index 0beb8ec..0000000 --- a/src/string/str/strstrncpy.c +++ /dev/null @@ -1,55 +0,0 @@ -/** - * slibc — Yet another C library - * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ -#include <string.h> - - - -/** - * Copy a memory segment to another, non-overlapping, segment, - * stop when a NUL byte or a specified substring is encountered. - * - * This is a slibc extension added for completeness. - * It is only available if GNU extensions are available. - * - * @param whither The destination memory segment. - * @param whence The source memory segment. - * @param str The substring, ignored if `NULL`. - * NOTE that if the resulting string at least this - * long, no NUL byte will be written to `whither'. - * On the otherhand, if the resultnig string is - * shorter, `whither` will be filled with NUL bytes - * until this amount of bytes have been written. - * @param maxlen The maximum number of bytes to copy. - * @return `NULL` if `str` was not encountered, otherwise - * the position of `str` translated to `whither`, - * that is, the address of `whither` plus the - * number of copied characters; the address of - * one character passed the last written non-NUL - * character. - */ -char* strstrncpy(char* restrict whither, const char* restrict whence, - const char* restrict str, size_t maxlen) -{ - const char* stop = strnstr(whence, str, maxlen); - size_t n = stop == NULL ? strnlen(whence, maxlen) : (size_t)(stop - whence); - char* r = stop == NULL ? NULL : (whither + n); - memcpy(whither, whence, n); - memset(whither, 0, maxlen - n); - return r; -} - diff --git a/src/string/str/strstrnmove.c b/src/string/str/strstrnmove.c deleted file mode 100644 index 9bec614..0000000 --- a/src/string/str/strstrnmove.c +++ /dev/null @@ -1,54 +0,0 @@ -/** - * slibc — Yet another C library - * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ -#include <string.h> - - - -/** - * Copy a memory segment to another, possibly overlapping, segment, - * stop when a NUL byte or a specified substring is encountered. - * - * This is a slibc extension added for completeness. - * It is only available if GNU extensions are available. - * - * @param whither The destination memory segment. - * @param whence The source memory segment. - * @param str The substring, ignored if `NULL`. - * NOTE that if the resulting string at least this - * long, no NUL byte will be written to `whither'. - * On the otherhand, if the resultnig string is - * shorter, `whither` will be filled with NUL bytes - * until this amount of bytes have been written. - * @param maxlen The maximum number of bytes to copy. - * @return `NULL` if `str` was not encountered, otherwise - * the position of `str` translated to `whither`, - * that is, the address of `whither` plus the - * number of copied characters; the address of - * one character passed the last written non-NUL - * character. - */ -char* strstrnmove(char* whither, const char* whence, const char* restrict str, size_t maxlen) -{ - const char* stop = strnstr(whence, str, maxlen); - size_t n = stop == NULL ? strnlen(whence, maxlen) : (size_t)(stop - whence); - char* r = stop == NULL ? NULL : (whither + n); - memmove(whither, whence, n); - memset(whither, 0, maxlen - n); - return r; -} - |