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fixed the potential overflow issue that would never happen in various binary serach functions

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hyung-hwan
2017-05-02 01:15:12 +00:00
parent b96113159b
commit 51c77b53f7
2 changed files with 11 additions and 6 deletions
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14
qse/tools/Makefile.in
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@ -91,11 +91,11 @@ subdir = tools
ACLOCAL_M4 = $(top_srcdir)/aclocal.m4 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
am__aclocal_m4_deps = $(top_srcdir)/m4/ax_check_sign.m4 \ am__aclocal_m4_deps = $(top_srcdir)/m4/ax_check_sign.m4 \
$(top_srcdir)/m4/ax_cxx_namespace.m4 \ $(top_srcdir)/m4/ax_cxx_namespace.m4 \
$(top_srcdir)/m4/ax_numval.m4 $(top_srcdir)/m4/ax_pthread.m4 \ $(top_srcdir)/m4/ax_lib_mysql.m4 $(top_srcdir)/m4/ax_numval.m4 \
$(top_srcdir)/m4/libtool.m4 $(top_srcdir)/m4/ltargz.m4 \ $(top_srcdir)/m4/ax_pthread.m4 $(top_srcdir)/m4/libtool.m4 \
$(top_srcdir)/m4/ltdl.m4 $(top_srcdir)/m4/ltoptions.m4 \ $(top_srcdir)/m4/ltargz.m4 $(top_srcdir)/m4/ltdl.m4 \
$(top_srcdir)/m4/ltsugar.m4 $(top_srcdir)/m4/ltversion.m4 \ $(top_srcdir)/m4/ltoptions.m4 $(top_srcdir)/m4/ltsugar.m4 \
$(top_srcdir)/m4/lt~obsolete.m4 \ $(top_srcdir)/m4/ltversion.m4 $(top_srcdir)/m4/lt~obsolete.m4 \
$(top_srcdir)/m4/lx_find_mpi.m4 $(top_srcdir)/configure.ac $(top_srcdir)/m4/lx_find_mpi.m4 $(top_srcdir)/configure.ac
am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \ am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
$(ACLOCAL_M4) $(ACLOCAL_M4)
@ -197,6 +197,10 @@ MKDIR_P = @MKDIR_P@
MPICC = @MPICC@ MPICC = @MPICC@
MPI_CFLAGS = @MPI_CFLAGS@ MPI_CFLAGS = @MPI_CFLAGS@
MPI_CLDFLAGS = @MPI_CLDFLAGS@ MPI_CLDFLAGS = @MPI_CLDFLAGS@
MYSQL_CFLAGS = @MYSQL_CFLAGS@
MYSQL_CONFIG = @MYSQL_CONFIG@
MYSQL_LDFLAGS = @MYSQL_LDFLAGS@
MYSQL_VERSION = @MYSQL_VERSION@
NM = @NM@ NM = @NM@
NMEDIT = @NMEDIT@ NMEDIT = @NMEDIT@
OBJDUMP = @OBJDUMP@ OBJDUMP = @OBJDUMP@

3
qse/tools/gencp1.awk
View File

@ -147,7 +147,8 @@ function emit_bsearch (name, min, max, arr) {
printf ("\t\tint left = 0, right = QSE_COUNTOF(%s_range) - 1, mid; printf ("\t\tint left = 0, right = QSE_COUNTOF(%s_range) - 1, mid;
while (left <= right) while (left <= right)
{ {
mid = (left + right) / 2; mid = left + (right - left) / 2;
if (c >= %s_range[mid].first && c <= %s_range[mid].last) if (c >= %s_range[mid].first && c <= %s_range[mid].last)
return %s_range[mid].seg[c - %s_range[mid].first]; return %s_range[mid].seg[c - %s_range[mid].first];
else if (c > %s_range[mid].last) else if (c > %s_range[mid].last)