c++ - char to int conversion in host device with CUDA -


i have been having trouble converting single character integer while in host function of cuda program. after line - 

token[j] = token[j] * 10 + (buf[i] - '0' );

i use cuda-gdb check value token[j], , different numbers not seem have pattern. have tried simple casting, not multiplying ten (which saw in thread), not subtracting '0', , seem different result. appreciated. first time posting on stack overflow, give me break if formatting awful.

-a fellow struggling coder

 __global__ void rread(unsigned int *table, char *buf, int *threadbytes, unsigned int *token) {          int = 0;          int j = 0;          *token = null;          int tid = threadidx.x;          unsigned int key;          char delim = ' ';          for(i = tid * *threadbytes; <(tid * *threadbytes) + *threadbytes ; i++)          {                  if (buf[i] != delim) { //check if not delim                          token[j] = token[j] * 10 + (buf[i] - '0' );

there's race condition on writing token.

if want have local array per block can use shared memory. if want local array per thread, need use local per-thread memory , declare array on stack. in first case have deal concurrency inside block well. in latter don't have to, although might potentially waste lot more memory (and reduce collaboration).


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