libc: Add strpbrk()

libs/libc/include/string.h

@@ -58,6 +58,9 @@ extern "C"
     /* Returns the length of the initial segment of str which consists entirely of bytes in accept. */
     size_t strspn(const char* str, const char* accept);
 
+    /* Returns a pointer to the first occurrence of any character of b in a. */
+    char* strpbrk(const char* a, const char* b);
+
     /* Compares strings a and b. You might prefer to use the safer strncmp function. */
     int strcmp(const char* a, const char* b);
 

libs/libc/src/string.cpp

@@ -167,6 +167,16 @@ extern "C"
         return s - str;
     }
 
+    char* strpbrk(const char* a, const char* b)
+    {
+        while (*a)
+        {
+            if (strchr(b, *a)) return const_cast<char*>(a);
+            a++;
+        }
+        return NULL;
+    }
+
     char* strcat(char* dest, const char* src)
     {
         size_t dest_len = strlen(dest);