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Top Forums Programming how to check and remove leading zeroes from the buffer using c program Post 302257112 by jim mcnamara on Tuesday 11th of November 2008 11:24:00 AM
Old 11-11-2008
Code:
/* usage example 
   void foo()
   {
      char z[4]{0x0};
      strcpy(z,"002");
      trim_leading(z, '0');
   }
*/
#include <string.h>

char *trim_leading(char *dest, int char_to_trim)
{
	char *p=strdup(dest);
	if(*p)
	{
	    while (*p && *p == char_to_trim) p++;
	    strcpy(dest,p);
	}
	free(p);
	return dest;	
}

 

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

NAME
stpcpy, strcasecmp, strcat, strchr, strcmp, strcoll, strcpy, strcspn, strdup, strfry, strlen, strncat, strncmp, strncpy, strncasecmp, strp- brk, strrchr, strsep, strspn, strstr, strtok, strxfrm, index, rindex - string operations SYNOPSIS
#include <strings.h> int strcasecmp(const char *s1, const char *s2); int strncasecmp(const char *s1, const char *s2, size_t n); char *index(const char *s, int c); char *rindex(const char *s, int c); #include <string.h> char *stpcpy(char *dest, const char *src); char *strcat(char *dest, const char *src); char *strchr(const char *s, int c); int strcmp(const char *s1, const char *s2); int strcoll(const char *s1, const char *s2); char *strcpy(char *dest, const char *src); size_t strcspn(const char *s, const char *reject); char *strdup(const char *s); char *strfry(char *string); size_t strlen(const char *s); char *strncat(char *dest, const char *src, size_t n); int strncmp(const char *s1, const char *s2, size_t n); char *strncpy(char *dest, const char *src, size_t n); char *strpbrk(const char *s, const char *accept); char *strrchr(const char *s, int c); char *strsep(char **stringp, const char *delim); size_t strspn(const char *s, const char *accept); char *strstr(const char *haystack, const char *needle); char *strtok(char *s, const char *delim); size_t strxfrm(char *dest, const char *src, size_t n); DESCRIPTION
The string functions perform string operations on null-terminated strings. See the individual man pages for descriptions of each function. SEE ALSO
index(3), rindex(3), strcasecmp(3), stpcpy(3), strcat(3), strchr(3), strcmp(3), strcoll(3), strcpy(3), strcspn(3), strdup(3), strfry(3), strlen(3), strncasecmp(3), strncat(3), strncmp(3), strncpy(3), strpbrk(3), strrchr(3), strsep(3), strspn(3), strstr(3), strtok(3), strxfrm(3) COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. 2010-02-25 STRING(3)
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