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-rw-r--r--compat/strtod.c62
1 files changed, 29 insertions, 33 deletions
diff --git a/compat/strtod.c b/compat/strtod.c
index c5d4b96..1147825 100644
--- a/compat/strtod.c
+++ b/compat/strtod.c
@@ -11,7 +11,6 @@
*/
#include "tclInt.h"
-#include "tclPort.h"
#include <ctype.h>
#ifndef TRUE
@@ -61,20 +60,19 @@ static double powersOf10[] = { /* Table giving binary powers of 10. Entry */
*/
double
-strtod(string, endPtr)
- CONST char *string; /* A decimal ASCII floating-point number,
- * optionally preceded by white space.
- * Must have form "-I.FE-X", where I is the
- * integer part of the mantissa, F is the
- * fractional part of the mantissa, and X
- * is the exponent. Either of the signs
- * may be "+", "-", or omitted. Either I
- * or F may be omitted, or both. The decimal
- * point isn't necessary unless F is present.
- * The "E" may actually be an "e". E and X
- * may both be omitted (but not just one).
- */
- char **endPtr; /* If non-NULL, store terminating character's
+strtod(
+ CONST char *string, /* A decimal ASCII floating-point number,
+ * optionally preceded by white space. Must
+ * have form "-I.FE-X", where I is the integer
+ * part of the mantissa, F is the fractional
+ * part of the mantissa, and X is the
+ * exponent. Either of the signs may be "+",
+ * "-", or omitted. Either I or F may be
+ * omitted, or both. The decimal point isn't
+ * necessary unless F is present. The "E" may
+ * actually be an "e". E and X may both be
+ * omitted (but not just one). */
+ char **endPtr) /* If non-NULL, store terminating character's
* address here. */
{
int sign, expSign = FALSE;
@@ -83,19 +81,19 @@ strtod(string, endPtr)
register int c;
int exp = 0; /* Exponent read from "EX" field. */
int fracExp = 0; /* Exponent that derives from the fractional
- * part. Under normal circumstatnces, it is
+ * part. Under normal circumstatnces, it is
* the negative of the number of digits in F.
* However, if I is very long, the last digits
* of I get dropped (otherwise a long I with a
* large negative exponent could cause an
- * unnecessary overflow on I alone). In this
+ * unnecessary overflow on I alone). In this
* case, fracExp is incremented one for each
* dropped digit. */
int mantSize; /* Number of digits in mantissa. */
int decPt; /* Number of mantissa digits BEFORE decimal
* point. */
- CONST char *pExp; /* Temporarily holds location of exponent
- * in string. */
+ CONST char *pExp; /* Temporarily holds location of exponent in
+ * string. */
/*
* Strip off leading blanks and check for a sign.
@@ -134,10 +132,10 @@ strtod(string, endPtr)
}
/*
- * Now suck up the digits in the mantissa. Use two integers to
- * collect 9 digits each (this is faster than using floating-point).
- * If the mantissa has more than 18 digits, ignore the extras, since
- * they can't affect the value anyway.
+ * Now suck up the digits in the mantissa. Use two integers to collect 9
+ * digits each (this is faster than using floating-point). If the mantissa
+ * has more than 18 digits, ignore the extras, since they can't affect the
+ * value anyway.
*/
pExp = p;
@@ -145,7 +143,7 @@ strtod(string, endPtr)
if (decPt < 0) {
decPt = mantSize;
} else {
- mantSize -= 1; /* One of the digits was the point. */
+ mantSize -= 1; /* One of the digits was the point. */
}
if (mantSize > 18) {
fracExp = decPt - 18;
@@ -159,9 +157,9 @@ strtod(string, endPtr)
goto done;
} else {
int frac1, frac2;
+
frac1 = 0;
- for ( ; mantSize > 9; mantSize -= 1)
- {
+ for ( ; mantSize > 9; mantSize -= 1) {
c = *p;
p += 1;
if (c == '.') {
@@ -171,8 +169,7 @@ strtod(string, endPtr)
frac1 = 10*frac1 + (c - '0');
}
frac2 = 0;
- for (; mantSize > 0; mantSize -= 1)
- {
+ for (; mantSize > 0; mantSize -= 1) {
c = *p;
p += 1;
if (c == '.') {
@@ -216,10 +213,9 @@ strtod(string, endPtr)
}
/*
- * Generate a floating-point number that represents the exponent.
- * Do this by processing the exponent one bit at a time to combine
- * many powers of 2 of 10. Then combine the exponent with the
- * fraction.
+ * Generate a floating-point number that represents the exponent. Do this
+ * by processing the exponent one bit at a time to combine many powers of
+ * 2 of 10. Then combine the exponent with the fraction.
*/
if (exp < 0) {
@@ -244,7 +240,7 @@ strtod(string, endPtr)
fraction *= dblExp;
}
-done:
+ done:
if (endPtr != NULL) {
*endPtr = (char *) p;
}