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-rw-r--r--memelemscan_inv.c84
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;