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author | Rich Felker <dalias@aerifal.cx> | 2012-08-10 22:18:49 -0400 |
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committer | Rich Felker <dalias@aerifal.cx> | 2012-08-10 22:18:49 -0400 |
commit | 4c346919a9b238748de2ee85ce6d749fc3cf7059 (patch) | |
tree | 85cf458d4e935e8f80f73611f4fca68708872204 | |
parent | e3ebe7db5de64c193202f1c5b321c9a470e730c5 (diff) | |
download | musl-4c346919a9b238748de2ee85ce6d749fc3cf7059.tar.gz musl-4c346919a9b238748de2ee85ce6d749fc3cf7059.tar.xz musl-4c346919a9b238748de2ee85ce6d749fc3cf7059.zip |
trivial optimization to printf: avoid wasted call frame
amusingly, this cuts more than 10% off the run time of printf("a"); on the machine i tested it on. sadly the same optimization is not possible for snprintf without duplicating all the pseudo-FILE setup code, which is not worth it.
-rw-r--r-- | src/stdio/printf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/stdio/printf.c b/src/stdio/printf.c index efeb8b33..7b7c329f 100644 --- a/src/stdio/printf.c +++ b/src/stdio/printf.c @@ -6,7 +6,7 @@ int printf(const char *fmt, ...) int ret; va_list ap; va_start(ap, fmt); - ret = vprintf(fmt, ap); + ret = vfprintf(stdout, fmt, ap); va_end(ap); return ret; } |