Find sub string: our own function : String Search « String « C / ANSI-C

C / ANSI-C 1.  assert.h 2.  Console 3.  ctype.h 4.  Data Structure Algorithm 5.  Data Type 6.  Development 7.  File 8.  Function 9.  Language Basics 10.  Macro Preprocessor 11.  Math 12.  math.h 13.  Memory 14.  Pointer 15.  setjmp.h 16.  signal.h 17.  Small Application 18.  stdio.h 19.  stdlib.h 20.  String 21.  string.h 22.  Structure 23.  time.h 24.  wctype.h Java Java Tutorial Java Source Code / Java Documentation Java Open Source Jar File Download Java Articles Java Products Java by API Photoshop Tutorials Maya Tutorials Flash Tutorials 3ds-Max Tutorials Illustrator Tutorials GIMP Tutorials C# / C Sharp C# / CSharp Tutorial C# / CSharp Open Source ASP.Net ASP.NET Tutorial JavaScript DHTML JavaScript Tutorial JavaScript Reference HTML / CSS HTML CSS Reference C Tutorial C++ C++ Tutorial Ruby PHP Python Python Tutorial Python Open Source SQL Server / T-SQL SQL Server / T-SQL Tutorial Oracle PL / SQL Oracle PL/SQL Tutorial PostgreSQL SQL / MySQL MySQL Tutorial VB.Net VB.Net Tutorial Flash / Flex / ActionScript VBA / Excel / Access / Word XML XML Tutorial Microsoft Office PowerPoint 2007 Tutorial Microsoft Office Excel 2007 Tutorial Microsoft Office Word 2007 Tutorial

C / ANSI-C » String » String Search Screenshots  Find sub string: our own function #include <stdio.h> int find_substr(char *listPointer, char *itemPointer); int main(void) {   if(find_substr("C is fun", "is") != -1)     printf("Substring is found.");   return 0; } /* Return index of first match of itemPointer in listPointer. */ int find_substr(char *listPointer, char *itemPointer) {   int t;   char *p, *p2;   for(t=0; listPointer[t]; t++) {     p = &listPointer[t];     p2 = itemPointer;     while(*p2 && *p2==*p) {       p++;       p2++;     }     if(!*p2) return t; /* 1st return */   }    return -1; /* 2nd return */ }                        Related examples in the same category 1.  Look up names in a hardcoded list 2.  Finding occurrences of one string in another: strstr 3.  A demonstration of seeking and finding 4.  Search a char inside a string 5.  Scan string for specified characters 6.  Find last occurrence of character in string 7.  Find substring 8.  Search string for occurrence of character set 9.  Search string 10.  Search string for occurrence of character set: how to use strcspn 11.  Scan string for specified characters: how to use strpbrk 12.  Find last occurrence of character in string: how to use strrchr 13.  Find substring: how to use strstr 14.  Find character in string: how to use strchr