Function validate_envVarPermitNodesToShareGpu

quest/src/core/validation.cpp:4365–4371

 */

void validate_envVarPermitNodesToShareGpu(string varValue, const char* caller) {

    // though caller should gaurantee varValue contains at least one character, 
    // we'll still check to avoid a segfault if this gaurantee is broken
    bool isValid = (varValue.size() == 1) && (varValue[0] == '0' || varValue[0] == '1');
    assertThat(isValid, report::INVALID_PERMIT_NODES_TO_SHARE_GPU_ENV_VAR, caller);
}

void validate_envVarDefaultValidationEpsilon(string varValue, const char* caller) {