实战Linux编程的原代码,希望对学驱动的人能有所帮助

源代码在线查看: printf

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相关代码

				#!/bin/sh				# basic tests for printf								prog=`pwd`/../../src/printf								if test "$VERBOSE" = yes; then				  set -x				  $prog --version				fi								pwd=`pwd`				t0=`echo "$0"|sed 's,.*/,,'`.tmp; tmp=$t0/$$				trap 'status=$?; cd $pwd; chmod -R u+rwx $t0; rm -rf $t0 && exit $status' 0				trap '(exit $?); exit $?' 1 2 13 15								framework_failure=0				mkdir -p $tmp || framework_failure=1				cd $tmp || framework_failure=1								if test $framework_failure = 1; then				  echo "$0: failure in testing framework" 1>&2				  (exit 1); exit 1				fi								fail=0								# This would fail (by printing the `--') for printf in sh-utils				# and in coreutils 4.5.1.				$prog -- 'foo\n' > out || fail=1				cat 				foo				EOF								cmp out exp || fail=1				test $fail = 1 && diff out exp 2> /dev/null								rm -f out exp				# Until coreutils-4.5.10, this would elicit a segfault.				$prog '1 %*sy\n' -3 x >  out || fail=1								# Until coreutils-4.5.12, these would fail.				POSIXLY_CORRECT=1 \				$prog '2 \x'          >> out || fail=1; echo >> out				$prog '3 \x40\n'      >> out || fail=1				POSIXLY_CORRECT=1 \				$prog '4 \x40\n'      >> out || fail=1				$prog '5 % +d\n' 234  >> out || fail=1				cat 				1 x  y				2 \x				3 @				4 \x40				5 +234				EOF								cmp out exp || fail=1				test $fail = 1 && diff out exp 2> /dev/null								(exit $fail); exit $fail							

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