C++ (Cpp) preproc_pop Examples

Example #1

File: preproc.c Project: bobrippling/ucc-c-compiler

static char *read_line(void)
{
	FILE *f;
	char *line;
	int newline;

re_read:
	if(file_stack_idx < 0)
		ICE("file stack idx = 0 on read()");
	f = file_stack[file_stack_idx].file;

	line = fline(f, &newline);

	if(!line){
		if(ferror(f))
			die("read():");

		fclose(f);
		if(file_stack_idx > 0){
			free(dirname_pop());
			preproc_pop();
			goto re_read;
		}else{
			if(!prev_newline){
				CPP_WARN(WNEWLINE, "no newline at end-of-file");
			}
		}

		return NULL;
	}

	prev_newline = newline;
	current_line++;

	return line;
}

Example #2

File: preproc.c Project: MoochMcGee/ucc-c-compiler

char *splice_line(void)
{
	static int n_nls;
	char *last;
	int join;

	if(n_nls){
		n_nls--;
		return ustrdup("");
	}

	last = NULL;
	join = 0;

	for(;;){
		FILE *f;
		int len;
		char *line;

re_read:
		if(file_stack_idx < 0)
			ICE("file stack idx = 0 on read()");
		f = file_stack[file_stack_idx].file;
		line = fline(f);

		if(!line){
			if(ferror(f))
				die("read():");

			fclose(f);
			if(file_stack_idx > 0){
				free(dirname_pop());
				preproc_pop();
				goto re_read;
			}

			return NULL;
		}

		current_line++;

		if(join){
			join = 0;

			last = urealloc(last, strlen(last) + strlen(line) + 1);
			strcpy(last + strlen(last), line);
			free(line);
			line = last;
		}

		len = strlen(line);
		if(len && line[len - 1] == '\\'){
			line[len - 1] = '\0';
			join = 1;
			last = line;
			n_nls++;
		}else{
			return line;
		}
	}
}