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robertdavidgraham / robert_3.c
Created Mar 11, 2013
This file is an update to the "robert_2.c" file located here: This is a contest for parsing integers with no integer overflows. The performance tests use mostly invalid input, which skews the performance results. My "robert_2.c" code is half as fast as the fastest "yang_2.c" code. That's because Yang in…
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#include "str2long.h"
long str2long_robert_3(const char *str)
long result = 0;
int i;
if (str[0] == '-') {
if (str[1] == '\0')
error = 1;
robertdavidgraham / str2long.c
Created Mar 9, 2013
This file in response to the programming contest at: The idea is to parse "long int" integers in C, with the following conditions: - accept all valid input - reject all invalid input (such as non-digit characters before the nul termination) - never have an integer overflow in the code The last part is the tric…
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* Code for programming contest at:
#include <limits.h>
extern int error;
long str2long(const char *str)
long result = 0;
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