Dave's Brain

Browse - programming tips - trim trailing space

Date: 2009mar30
Language: C/C++

Q.  How can I delete trailing space from a string?

A.  Turn trailing spaces into NUL's as this function does:

void TrimTrailingSpace(char *s)
{
	for (char *p = &s[strlen(s)-1]; p >= s; p--)
	{
		if (!isspace(*p)) break;
		*p = '\0';
	}
}

void ExampleUse()
{
	char	buf[100];

	lstrcpyn(buf, "Hello World     ", sizeof(buf));
	TrimTrailingSpace(buf);
	printf(">%s<\n", buf);
	// Will output >Hello World<
}

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