Question

Is there any method in C can find a text within another text?

For example, text = "abaHello", textneedtoSearch = "Hello";.

If the text contains "Hello", return true, else return false.

Answer 1

Character and string searching functions

`char *strstr( const char *s1,  const char *s2)`

returns a pointer to the first
instance of string s2 in s1. Returns
a NULL pointer if s2 is not
encountered in s1.

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In additon,

int strcmp(const char *s1, const char *s2);

strcmp compares the string s1 to the string s2. The function returns 0 if they are the same, a number < 0 if s1 < s2, a number > 0 if s1 > s2.

This is one of the most commonly used
of the string-handling functions.

And check this link for anything about string functions in C, C string functions