diff options
Diffstat (limited to '')
| -rw-r--r-- | memelemscan_inv.c | 84 |
1 files changed, 42 insertions, 42 deletions
diff --git a/memelemscan_inv.c b/memelemscan_inv.c index 7e7a0a4..37b479a 100644 --- a/memelemscan_inv.c +++ b/memelemscan_inv.c @@ -4,32 +4,32 @@ void * -libsimple_memelemscan_inv(const void *hay_, size_t hayn, const void *sub_, size_t subn) +libsimple_memelemscan_inv(const void *hay_, const void *sub_, size_t width, size_t n) { - switch (subn) { + switch (width) { case 0: return (void *)hay_; case 1: - return libsimple_memscan_inv(hay_, *(char *)sub_, hayn); + return libsimple_memscan_inv(hay_, *(char *)sub_, n); case 2: { uint16_t *hay = (void *)hay_; uint16_t sub = *(uint16_t *)sub_; - for (; hayn-- && *hay == sub; hay++); + for (; n-- && *hay == sub; hay++); return hay; } case 4: { uint32_t *hay = (void *)hay_; uint32_t sub = *(uint32_t *)sub_; - for (; hayn-- && *hay == sub; hay++); + for (; n-- && *hay == sub; hay++); return hay; } case 8: { uint64_t *hay = (void *)hay_; uint64_t sub = *(uint64_t *)sub_; - for (; hayn-- && *hay == sub; hay++); + for (; n-- && *hay == sub; hay++); return hay; } default: @@ -37,8 +37,8 @@ libsimple_memelemscan_inv(const void *hay_, size_t hayn, const void *sub_, size_ char *hay = (void *)hay_; const char *sub = sub_; size_t i; - for (; hayn--; hay += subn) { - for (i = 0; i < subn; i++) + for (; n--; hay += width) { + for (i = 0; i < width; i++) if (hay[i] != sub[i]) return hay; } @@ -54,49 +54,49 @@ libsimple_memelemscan_inv(const void *hay_, size_t hayn, const void *sub_, size_ int main(void) { - assert(!strcmpnul(libsimple_memelemscan_inv("xxoxx", 5, "x", 0), "xxoxx")); - assert(!strcmpnul(libsimple_memelemscan_inv("xxXxx", 5, "x", 0), "xxXxx")); - assert(!strcmpnul(libsimple_memelemscan_inv("XXoxx", 5, "x", 0), "XXoxx")); - assert(!strcmpnul(libsimple_memelemscan_inv("zzzzz", 5, "z", 0), "zzzzz")); - assert(!strcmpnul(libsimple_memelemscan_inv("zzzzx", 3, "z", 0), "zzzzx")); + assert(!strcmpnul(libsimple_memelemscan_inv("xxoxx", "x", 0, 5), "xxoxx")); + assert(!strcmpnul(libsimple_memelemscan_inv("xxXxx", "x", 0, 5), "xxXxx")); + assert(!strcmpnul(libsimple_memelemscan_inv("XXoxx", "x", 0, 5), "XXoxx")); + assert(!strcmpnul(libsimple_memelemscan_inv("zzzzz", "z", 0, 5), "zzzzz")); + assert(!strcmpnul(libsimple_memelemscan_inv("zzzzx", "z", 0, 3), "zzzzx")); - assert(!strcmpnul(libsimple_memelemscan_inv("xxoxx", 5, "x", 1), "oxx")); - assert(!strcmpnul(libsimple_memelemscan_inv("xxXxx", 5, "x", 1), "Xxx")); - assert(!strcmpnul(libsimple_memelemscan_inv("XXoxx", 5, "x", 1), "XXoxx")); - assert(!strcmpnul(libsimple_memelemscan_inv("zzzzz", 5, "z", 1), "")); - assert(!strcmpnul(libsimple_memelemscan_inv("zzzzx", 3, "z", 1), "zx")); + assert(!strcmpnul(libsimple_memelemscan_inv("xxoxx", "x", 1, 5), "oxx")); + assert(!strcmpnul(libsimple_memelemscan_inv("xxXxx", "x", 1, 5), "Xxx")); + assert(!strcmpnul(libsimple_memelemscan_inv("XXoxx", "x", 1, 5), "XXoxx")); + assert(!strcmpnul(libsimple_memelemscan_inv("zzzzz", "z", 1, 5), "")); + assert(!strcmpnul(libsimple_memelemscan_inv("zzzzx", "z", 1, 3), "zx")); - assert(!strcmpnul(libsimple_memelemscan_inv("-x-x-o-x-x", 5, "-x", 2), "-o-x-x")); - assert(!strcmpnul(libsimple_memelemscan_inv("-x-x-X-x-x", 5, "-x", 2), "-X-x-x")); - assert(!strcmpnul(libsimple_memelemscan_inv("-X-X-o-x-x", 5, "-x", 2), "-X-X-o-x-x")); - assert(!strcmpnul(libsimple_memelemscan_inv("-z-z-z-z-z", 5, "-z", 2), "")); - assert(!strcmpnul(libsimple_memelemscan_inv("-z-z-z-z-x", 3, "-z", 2), "-z-x")); - assert(!strcmpnul(libsimple_memelemscan_inv("---z-z-z-x", 5, "--", 2), "-z-z-z-x")); + assert(!strcmpnul(libsimple_memelemscan_inv("-x-x-o-x-x", "-x", 2, 5), "-o-x-x")); + assert(!strcmpnul(libsimple_memelemscan_inv("-x-x-X-x-x", "-x", 2, 5), "-X-x-x")); + assert(!strcmpnul(libsimple_memelemscan_inv("-X-X-o-x-x", "-x", 2, 5), "-X-X-o-x-x")); + assert(!strcmpnul(libsimple_memelemscan_inv("-z-z-z-z-z", "-z", 2, 5), "")); + assert(!strcmpnul(libsimple_memelemscan_inv("-z-z-z-z-x", "-z", 2, 3), "-z-x")); + assert(!strcmpnul(libsimple_memelemscan_inv("---z-z-z-x", "--", 2, 5), "-z-z-z-x")); - assert(!strcmpnul(libsimple_memelemscan_inv("--x--x--o--x--x", 5, "--x", 3), "--o--x--x")); - assert(!strcmpnul(libsimple_memelemscan_inv("--x--x--X--x--x", 5, "--x", 3), "--X--x--x")); - assert(!strcmpnul(libsimple_memelemscan_inv("--X--X--o--x--x", 5, "--x", 3), "--X--X--o--x--x")); - assert(!strcmpnul(libsimple_memelemscan_inv("--z--z--z--z--z", 5, "--z", 3), "")); - assert(!strcmpnul(libsimple_memelemscan_inv("--z--z--z--z--x", 3, "--z", 3), "--z--x")); - assert(!strcmpnul(libsimple_memelemscan_inv("-----z--z--z--x", 5, "---", 3), "--z--z--z--x")); + assert(!strcmpnul(libsimple_memelemscan_inv("--x--x--o--x--x", "--x", 3, 5), "--o--x--x")); + assert(!strcmpnul(libsimple_memelemscan_inv("--x--x--X--x--x", "--x", 3, 5), "--X--x--x")); + assert(!strcmpnul(libsimple_memelemscan_inv("--X--X--o--x--x", "--x", 3, 5), "--X--X--o--x--x")); + assert(!strcmpnul(libsimple_memelemscan_inv("--z--z--z--z--z", "--z", 3, 5), "")); + assert(!strcmpnul(libsimple_memelemscan_inv("--z--z--z--z--x", "--z", 3, 3), "--z--x")); + assert(!strcmpnul(libsimple_memelemscan_inv("-----z--z--z--x", "---", 3, 5), "--z--z--z--x")); - assert(!strcmpnul(libsimple_memelemscan_inv("---x---x---o---x---x", 5, "---x", 4), "---o---x---x")); - assert(!strcmpnul(libsimple_memelemscan_inv("---x---x---X---x---x", 5, "---x", 4), "---X---x---x")); - assert(!strcmpnul(libsimple_memelemscan_inv("---X---X---o---x---x", 5, "---x", 4), "---X---X---o---x---x")); - assert(!strcmpnul(libsimple_memelemscan_inv("---z---z---z---z---z", 5, "---z", 4), "")); - assert(!strcmpnul(libsimple_memelemscan_inv("---z---z---z---z---x", 3, "---z", 4), "---z---x")); - assert(!strcmpnul(libsimple_memelemscan_inv("-------z---z---z---x", 5, "----", 4), "---z---z---z---x")); + assert(!strcmpnul(libsimple_memelemscan_inv("---x---x---o---x---x", "---x", 4, 5), "---o---x---x")); + assert(!strcmpnul(libsimple_memelemscan_inv("---x---x---X---x---x", "---x", 4, 5), "---X---x---x")); + assert(!strcmpnul(libsimple_memelemscan_inv("---X---X---o---x---x", "---x", 4, 5), "---X---X---o---x---x")); + assert(!strcmpnul(libsimple_memelemscan_inv("---z---z---z---z---z", "---z", 4, 5), "")); + assert(!strcmpnul(libsimple_memelemscan_inv("---z---z---z---z---x", "---z", 4, 3), "---z---x")); + assert(!strcmpnul(libsimple_memelemscan_inv("-------z---z---z---x", "----", 4, 5), "---z---z---z---x")); - assert(!strcmpnul(libsimple_memelemscan_inv("-------x-------x-------o-------x-------x", 5, "-------x", 8), + assert(!strcmpnul(libsimple_memelemscan_inv("-------x-------x-------o-------x-------x", "-------x", 8, 5), "-------o-------x-------x")); - assert(!strcmpnul(libsimple_memelemscan_inv("-------x-------x-------X-------x-------x", 5, "-------x", 8), + assert(!strcmpnul(libsimple_memelemscan_inv("-------x-------x-------X-------x-------x", "-------x", 8, 5), "-------X-------x-------x")); - assert(!strcmpnul(libsimple_memelemscan_inv("-------X-------X-------o-------x-------x", 5, "-------x", 8), + assert(!strcmpnul(libsimple_memelemscan_inv("-------X-------X-------o-------x-------x", "-------x", 8, 5), "-------X-------X-------o-------x-------x")); - assert(!strcmpnul(libsimple_memelemscan_inv("-------z-------z-------z-------z-------z", 5, "-------z", 8), "")); - assert(!strcmpnul(libsimple_memelemscan_inv("-------z-------z-------z-------z-------x", 3, "-------z", 8), + assert(!strcmpnul(libsimple_memelemscan_inv("-------z-------z-------z-------z-------z", "-------z", 8, 5), "")); + assert(!strcmpnul(libsimple_memelemscan_inv("-------z-------z-------z-------z-------x", "-------z", 8, 3), "-------z-------x")); - assert(!strcmpnul(libsimple_memelemscan_inv("---------------z-------z-------z-------x", 5, "--------", 8), + assert(!strcmpnul(libsimple_memelemscan_inv("---------------z-------z-------z-------x", "--------", 8, 5), "-------z-------z-------z-------x")); return 0; |