sum 293 usr/lib/libc/stdio/vfscanf.c size_t sum = 0; sum 296 usr/lib/libc/stdio/vfscanf.c sum += n; sum 300 usr/lib/libc/stdio/vfscanf.c if (sum == 0) sum 305 usr/lib/libc/stdio/vfscanf.c sum += width; sum 311 usr/lib/libc/stdio/vfscanf.c nread += sum;