strchr.c

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/***************************************************************************//**
 @file strchr.c
 
 @brief Defines the strchr function
*******************************************************************************/
#include <string.h>
 
/*******************************************************************************
 strchr
*//**
 @brief Locate the first occurrence of a character in a string
 @param *s String being searched
 @param c Character to find
 
 The strchr function locates the first occurrence of c (converted to a
 char) in the string pointed to by s. The terminating null character is
 considered to be a part of the string.
 
 @return A pointer to the located character
 @retval NULL The character does not occur in the string
*******************************************************************************/
char *
strchr(const char *s, int c)
{
 const char search = c;
 
 while (s)
 {
 if (search == *s)
 {
 return (char *) s;
 }
 
 if ('\0' == *s)
 {
 break;
 }
 
 s++;
 }
 
 return NULL;
}