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It's not easy to get signed integer overflow checks correct and fast. Therefore abstract the necessary infrastructure into a common header providing addition, subtraction and multiplication for 16, 32, 64 bit signed integers. The new macros aren't yet used, but a followup commit will convert several open coded overflow checks. Author: Andres Freund, with some code stolen from Greg Stark Reviewed-By: Robert Haas Discussion: https://postgr.es/m/20171024103954.ztmatprlglz3rwke@alap3.anarazel.de |
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ac_func_accept_argtypes.m4 | ||
ax_prog_perl_modules.m4 | ||
ax_pthread.m4 | ||
c-compiler.m4 | ||
c-library.m4 | ||
config.guess | ||
config.sub | ||
docbook.m4 | ||
general.m4 | ||
install-sh | ||
libtool.m4 | ||
Makefile | ||
missing | ||
perl.m4 | ||
pkg.m4 | ||
prep_buildtree | ||
programs.m4 | ||
python.m4 | ||
tcl.m4 |