Introduction - If you have any usage issues, please Google them yourself
# This script scans a list of C programs and
# tries to find if statements which do assignments.
# Specifically, it looks for any line which contains
# text of the form if(....), where if is the first
# non-blank thing on the line, and the (....) contains
# an = which is not part of ==, !=, <=, or >=.
# Each such line is listed with the file name and the
# line number. This is not a perfect check, but it
# will do a decent job.
#
#
# This function analyzes one line to see if it it
# is suspicious. If so, it prints it. It also updates
# the global flag $badfound, and prints an extra message
# the first time a bad line is found. It should be
# called as
# check_line (filename, line)
# where the filename is used only when a message is
# generated. The $. line number is used also.
#