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Explicitly add stdio.h and string.h to make strtod.c work standalone.

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Found using Clang's static analyzer.
This commit is contained in:
Brett Cannon 2010-05-05 20:50:03 +00:00
parent c33e82d23c
commit 0b64be2389
1 changed files with 9 additions and 6 deletions
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15
Python/strtod.c
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@ -1,3 +1,6 @@
#include <stdio.h>
#include <string.h>
#include "pyconfig.h" #include "pyconfig.h"
/* comp.sources.misc strtod(), as posted in comp.lang.tcl, /* comp.sources.misc strtod(), as posted in comp.lang.tcl,
@ -14,7 +17,7 @@
Defines: double strtod (char *str, char**ptr) Defines: double strtod (char *str, char**ptr)
*/ */
/* This is an implementation of the strtod() function described in the /* This is an implementation of the strtod() function described in the
System V manuals, with a different name to avoid linker problems. System V manuals, with a different name to avoid linker problems.
All that str2dbl() does itself is check that the argument is well-formed All that str2dbl() does itself is check that the argument is well-formed
and is in range. It leaves the work of conversion to atof(), which is and is in range. It leaves the work of conversion to atof(), which is
@ -29,7 +32,7 @@
of strtod(), and if we give this one away maybe someone will look for of strtod(), and if we give this one away maybe someone will look for
mistakes in it and fix them for us (:-). mistakes in it and fix them for us (:-).
*/ */
/* The following constants are machine-specific. MD{MIN,MAX}EXPT are /* The following constants are machine-specific. MD{MIN,MAX}EXPT are
integers and MD{MIN,MAX}FRAC are strings such that integers and MD{MIN,MAX}FRAC are strings such that
0.${MDMAXFRAC}e${MDMAXEXPT} is the largest representable double, 0.${MDMAXFRAC}e${MDMAXEXPT} is the largest representable double,
@ -74,10 +77,10 @@ double strtod(char *str, char **ptr)
sign = 1; sign = 1;
if (*sp == '-') sign -= 2, sp++; if (*sp == '-') sign -= 2, sp++;
dotseen = 0, scale = 0; dotseen = 0, scale = 0;
dp = buffer; dp = buffer;
*dp++ = '0'; *dp++ = '.'; *dp++ = '0'; *dp++ = '.';
buforg = dp, buflim = buffer+48; buforg = dp, buflim = buffer+48;
for (save = sp; c = *sp; sp++) for (save = sp; (c = *sp); sp++)
if (c == '.') { if (c == '.') {
if (dotseen) break; if (dotseen) break;
dotseen++; dotseen++;
@ -106,7 +109,7 @@ double strtod(char *str, char **ptr)
errno = EDOM; /* what should this be? */ errno = EDOM; /* what should this be? */
return ZERO; return ZERO;
} }
while (dp > buforg && dp[-1] == '0') --dp; while (dp > buforg && dp[-1] == '0') --dp;
if (dp == buforg) *dp++ = '0'; if (dp == buforg) *dp++ = '0';
*dp = '\0'; *dp = '\0';
@ -128,7 +131,7 @@ double strtod(char *str, char **ptr)
if ((unsigned)(c-'0') > (unsigned)('9'-'0')) break; if ((unsigned)(c-'0') > (unsigned)('9'-'0')) break;
while (c == '0') c = *sp++; while (c == '0') c = *sp++;
for (; (unsigned)(c-'0') <= (unsigned)('9'-'0'); c = *sp++) for (; (unsigned)(c-'0') <= (unsigned)('9'-'0'); c = *sp++)
expt = expt*10 + c-'0'; expt = expt*10 + c-'0';
if (esign < 0) expt = -expt; if (esign < 0) expt = -expt;
save = sp-1; save = sp-1;
} while (0); } while (0);