1STRSTR(3) Library Functions Manual STRSTR(3)
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6 strstr - locate a substring in a string
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9 #include <string.h>
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11 char *
12 strstr(big, little)
13 char *big, *little;
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16 The strstr() function locates the first occurrence of the null-termi‐
17 nated string little in the null-terminated string big. If little is
18 the empty string, strstr() returns big; if little occurs nowhere in
19 big, strstr() returns NULL; otherwise strstr() returns a pointer to the
20 first character of the first occurrence of little.
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23 index(3), memchr(3), rindex(3), strchr(3), strcspn(3), strpbrk(3), str‐
24 rchr(3), strsep(3), strspn(3), strtok(3)
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27 The strstr() function conforms to ANSI C X3/159-1989 (``ANSI C'').
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314.4 Berkeley Distribution January 15, 1996 STRSTR(3)