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Full Discussion: help with C, argv
Top Forums Programming help with C, argv Post 302495076 by Corona688 on Wednesday 9th of February 2011 09:16:07 AM
Old 02-09-2011
Or, to further an explanation, what a string really is, is a pointer to memory, telling where the string is stored. You can't store it in a single character. When printf() expects a pointer and you hand it a character, it goes to whatever garbled value got stored in your char and tries to read it, and since it's almost certainly invalid, crashes.
 

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INDEX(3)						     Linux Programmer's Manual							  INDEX(3)

NAME
index, rindex - locate character in string SYNOPSIS
#include <strings.h> char *index(const char *s, int c); char *rindex(const char *s, int c); DESCRIPTION
The index() function returns a pointer to the first occurrence of the character c in the string s. The rindex() function returns a pointer to the last occurrence of the character c in the string s. The terminating NULL character is considered to be a part of the strings. RETURN VALUE
The index() and rindex() functions return a pointer to the matched character or NULL if the character is not found. CONFORMING TO
BSD 4.3 SEE ALSO
memchr(3), strchr(3), strpbrk(3), strrchr(3), strsep(3), strspn(3), strstr(3), strtok(3) GNU
1993-04-12 INDEX(3)
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