How can I convert a char* string to long long (64-bit) integer?
I use MSVC and GCC compilers and my platforms are Windows, Linux and MAC OS.
Thanks.
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How can I convert a char* string to long long (64-bit) integer?
I use MSVC and GCC compilers and my platforms are Windows, Linux and MAC OS.
Thanks.
Use
strtoullfor unsigned long long orstrtollfor signed long long. On any Unix (Linux, Mac OS X), typeman strtoullorman strtollto get its description. Since both are part of the C99 standard they should be available on any system that supports C. The Linux man pages also have examples on how to use them.