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Fix comparison bw integer and pointer (#4155)

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* Fix comparison bw integer and pointer

Error: ISO C++ forbids comparison between pointer and integer [-fpermissive]

* Check for nullptr input string.
This commit is contained in:
Can Geliş 2017-10-21 22:58:24 +03:00 committed by Joseph Lenox
parent 2675e697ef
commit b3bd918f29
1 changed files with 3 additions and 1 deletions
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4
xs/src/boost/nowide/cenv.hpp
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@ -99,9 +99,11 @@ namespace nowide {
/// ///
inline int putenv(char *string) inline int putenv(char *string)
{ {
if (string == nullptr) return -1;
char const *key = string; char const *key = string;
char const *key_end = string; char const *key_end = string;
while(*key_end!='=' && key_end!='\0')
while(*key_end!='=' && *key_end!='\0')
key_end++; key_end++;
if(*key_end == '\0') if(*key_end == '\0')
return -1; return -1;